15-7(5+6)=a

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Solution for 15-7(5+6)=a equation: 



15-7(5+6)=a

We move all terms to the left:

15-7(5+6)-(a)=0

We add all the numbers together, and all the variables

-a+15-711=0

We add all the numbers together, and all the variables

-1a-696=0

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

-a=696

a=696/-1

a=-696

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