5a-1=a+7

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Solution for 5a-1=a+7 equation: 



5a-1=a+7

We move all terms to the left:

5a-1-(a+7)=0

We get rid of parentheses

5a-a-7-1=0

We add all the numbers together, and all the variables

4a-8=0

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

4a=8

a=8/4

a=2

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