7a-(3a-5)=13

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Solution for 7a-(3a-5)=13 equation: 



7a-(3a-5)=13

We move all terms to the left:

7a-(3a-5)-(13)=0

We get rid of parentheses

7a-3a+5-13=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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