-15=-8+a/2

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Solution for -15=-8+a/2 equation: 



-15=-8+a/2

We move all terms to the left:

-15-(-8+a/2)=0

We add all the numbers together, and all the variables

-(a/2-8)-15=0

We get rid of parentheses

-a/2+8-15=0

We multiply all the terms by the denominator


-a+8*2-15*2=0

We add all the numbers together, and all the variables

-1a-14=0

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

-a=14

a=14/-1

a=-14

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