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postnew [5]
4 years ago
12

Simplify the expression- 4+ -9r–1

Mathematics
2 answers:
damaskus [11]4 years ago
4 0

Answer:

<h3>-9r + 3.</h3>

Step-by-step explanation:

Group Like <u>Terms:</u>

A: -9r + 4 - 1,

<u>Add/Subtract </u>numbers:

<h3>A: -9r + 3.</h3><h3></h3>

If you have any questions feel free to comment below.

Best of Luck to you.

m_a_m_a [10]4 years ago
3 0

Answer: -9r+3

Step-by-step explanation:

In order to simplify this expression, all you have to do is combine the like terms. However, because there is an addition and a subtraction sign next to each other, we have to multiply them together to find which sign will stay.

Positive x Positive = Positive

Positive x Negative = Negative   <---

Negative x Negative = Positive

Because we know that multiplying a negative sign by a positive sign will give us negative, we have to keep the subtraction sign and remove the addition sign. This leaves us with 4-9r-1. All that is left to do is simplify.

Combine the like terms: 4-1 = 3

Answer: -9r+3

Hope this helps!

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