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Scrat [10]
4 years ago
7

-5a-9+a=15 Explain please

Mathematics
2 answers:
IgorC [24]4 years ago
8 0

Answer:

a = -6

Step-by-step explanation:

-5a-9+a=15

Combine like terms

-5a+a  -9 = 15

-4a  -9 = 15

Add 9 to each side

-4a -9+9 = 15+9

-4a = 24

Divide by -4

-4a/-4 = 24/-4

a = -6

Artist 52 [7]4 years ago
5 0

Answer:

a = -6

Step-by-step explanation:

1. Combine like terms: -4a – 9 = 15

2. Use the additive property of equality to add 9 to both sides: -4a = 24

3. Use division property of equality to divide -4 on both sides: a = -6

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Answer:

The correct option is C

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Step-by-step explanation:

The question is incomplete because the figure is not given. I have attached the figure of the same question below. Consult it for better understanding.

We can see in the figure that <2 and <4 are opposite angles, therefore these are equal.

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Similarly we can also see that <5 and <7 are also opposite angles, therefore they are equal too.

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