15=4a+5+2

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Solution for 15=4a+5+2 equation: 



15=4a+5+2

We move all terms to the left:

15-(4a+5+2)=0

We add all the numbers together, and all the variables

-(4a+7)+15=0

We get rid of parentheses

-4a-7+15=0

We add all the numbers together, and all the variables

-4a+8=0

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

-4a=-8

a=-8/-4

a=+2

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