Respuesta :

nicholasfoh10

Answer:

a=1

Step-by-step explanation:

The answer to this problem is 1. This is the answer because  using PEMDAS, you would first have to distribute -3.

So: 9a+ -6a+12=15

Combine like terms:

3a+12=15

Subtract 12 on each side. 3a= 3

Divide 3 on each side.

a=1

Hope this helps!! :D
First, you have to do distributive property. After that, you have to combine like terms and then subtract 12 from both sides. Finally, divide both sides by 3 to leave the variable by itself.
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