a-7=5-5a

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



a-7=5-5a

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

a+5a-5-7=0

We add all the numbers together, and all the variables

6a-12=0

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

6a=12

a=12/6

a=2

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