3a-5=7a+2

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Solution for 3a-5=7a+2 equation: 



3a-5=7a+2

We move all terms to the left:

3a-5-(7a+2)=0

We get rid of parentheses

3a-7a-2-5=0

We add all the numbers together, and all the variables

-4a-7=0

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

-4a=7

a=7/-4

a=-1+3/4

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