3-2(a+5)=15

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Solution for 3-2(a+5)=15 equation: 



3-2(a+5)=15

We move all terms to the left:

3-2(a+5)-(15)=0

We add all the numbers together, and all the variables

-2(a+5)-12=0

We multiply parentheses

-2a-10-12=0

We add all the numbers together, and all the variables

-2a-22=0

We move all terms containing a to the left, all other terms to the right

-2a=22

a=22/-2

a=-11

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