2(a-4)-15=13

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Solution for 2(a-4)-15=13 equation: 



2(a-4)-15=13

We move all terms to the left:

2(a-4)-15-(13)=0

We add all the numbers together, and all the variables

2(a-4)-28=0

We multiply parentheses

2a-8-28=0

We add all the numbers together, and all the variables

2a-36=0

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

2a=36

a=36/2

a=18

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