5a-3=a-7

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Solution for 5a-3=a-7 equation: 



5a-3=a-7

We move all terms to the left:

5a-3-(a-7)=0

We get rid of parentheses

5a-a+7-3=0

We add all the numbers together, and all the variables

4a+4=0

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

4a=-4

a=-4/4

a=-1

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