Obral dan tukar tambah itu berbeda.

Obral usually means a sale, especially a clearance sale, big discount sale, or sell-off. It often suggests that goods are being sold at reduced prices, sometimes to clear stock.

So in this sentence, obral is a noun referring to that kind of sale event, not a verb.

Tukar tambah means something like a trade-in. It refers to a transaction where you give in your old item and add money to get a new one.

For example, trading in an old motorcycle, phone, or car and paying extra for a newer one would be tukar tambah.

Indonesian often does not use a verb equivalent to to be in simple present statements.

So:

• Obral dan tukar tambah itu berbeda.

naturally means:

• That sale and trade-in are different / Sales and trade-ins are different

This is normal Indonesian sentence structure. You do not need a separate word for are here.

Here, itu points to something already known or being discussed. It often means that, but in natural English it may not always need to be translated directly.

So obral dan tukar tambah itu can mean things like:

• that sale and trade-in
• those two things, sale and trade-in
• sales and trade-ins in a context where both are already understood

In Indonesian, itu is often placed after the noun it modifies:

• buku itu = that book
• obral itu = that sale

Here it comes after the whole phrase:

• obral dan tukar tambah itu

meaning that sale and trade-in / those things called sale and trade-in

In this sentence, itu most naturally applies to the whole combined phrase obral dan tukar tambah.

So the structure is understood as:

• [obral dan tukar tambah] itu = those things, sale and trade-in

It is not usually understood as only modifying tukar tambah.

Berbeda means different or to be different.

In this sentence, it works like a predicate adjective:

• Obral dan tukar tambah itu berbeda.
• Sale and trade-in are different.

You can also compare it with:

• berbeda dari = different from
• berbeda dengan = different from / different compared with

For example:

• Obral berbeda dari tukar tambah.
• A sale is different from a trade-in.

Both beda and berbeda are used in Indonesian, but berbeda is generally more standard and a bit more formal or complete in style.

• beda = difference / different
• berbeda = to be different / different

In casual speech, many people say:

• Obral dan tukar tambah itu beda.

This is very common and natural in conversation.

The version with berbeda sounds a bit more formal or careful.

That is a normal feature of Indonesian grammar. Demonstratives such as ini and itu usually come after the noun.

Examples:

• rumah itu = that house
• mobil ini = this car
• program tukar tambah itu = that trade-in program

So obral dan tukar tambah itu follows the usual Indonesian pattern.

Yes, it is a complete and natural sentence.

Indonesian often omits adalah, especially when the predicate is an adjective, as in berbeda.

Natural:

• Obral dan tukar tambah itu berbeda.

Less natural here:

• Obral dan tukar tambah itu adalah berbeda.

Using adalah before berbeda would usually sound awkward. Adalah is more commonly used before nouns or noun phrases, not adjectives.

Yes. Dan is the standard Indonesian word for and.

So:

• obral dan tukar tambah = sale and trade-in

Nothing unusual is happening there.

Yes, depending on context, the English translation can vary.

Because Indonesian does not mark articles like a, the, or plural -s, the sentence can be interpreted in several ways:

• A sale and a trade-in are different
• Sales and trade-ins are different
• That sale and trade-in are different

The presence of itu usually pushes it toward that/those or something already known in context, but English translation still depends on what the speaker is talking about.

Yes. The meaning is that obral and tukar tambah are not the same thing.

So the idea is:

• A sale is different from a trade-in.

Even though Indonesian does not explicitly say from each other here, that comparison is understood from context.

Yes, that is possible, but it sounds more specific and a bit heavier.

• Obral dan tukar tambah itu berbeda = the two concepts/items together are being referred to
• Obral itu dan tukar tambah itu berbeda = that sale and that trade-in are different, with each noun separately marked

The original sentence is smoother and more natural if both items are being grouped together as the topic.

It is fairly neutral, leaning slightly formal because of berbeda.

• Obral dan tukar tambah itu berbeda. = neutral/standard
• Obral dan tukar tambah itu beda. = more casual

Both are correct, but the original sounds a bit more polished.

You should learn tukar tambah as a fixed expression.

Literally:

• tukar = exchange
• tambah = add

But together, tukar tambah has the specific meaning trade-in, where something is exchanged and extra money is added.

So it is better to remember it as one set phrase rather than translating each word separately every time.