-5a+7a=63

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Solution for -5a+7a=63 equation: 



-5a+7a=63

We move all terms to the left:

-5a+7a-(63)=0

We add all the numbers together, and all the variables

2a-63=0

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

2a=63

a=63/2

a=31+1/2

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