7+13a=-12a+7

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Solution for 7+13a=-12a+7 equation: 



7+13a=-12a+7

We move all terms to the left:

7+13a-(-12a+7)=0

We get rid of parentheses

13a+12a-7+7=0

We add all the numbers together, and all the variables

25a=0

a=0/25

a=0

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