-5a-7+7a=11+2

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Solution for -5a-7+7a=11+2 equation: 



-5a-7+7a=11+2

We move all terms to the left:

-5a-7+7a-(11+2)=0

We add all the numbers together, and all the variables

-5a+7a-7-13=0

We add all the numbers together, and all the variables

2a-20=0

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

2a=20

a=20/2

a=10

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