7-3a=a-5

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



7-3a=a-5

We move all terms to the left:

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

We get rid of parentheses

-3a-a+5+7=0

We add all the numbers together, and all the variables

-4a+12=0

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

-4a=-12

a=-12/-4

a=+3

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