7a-5=-5a-13

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Solution for 7a-5=-5a-13 equation: 



7a-5=-5a-13

We move all terms to the left:

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

We get rid of parentheses

7a+5a+13-5=0

We add all the numbers together, and all the variables

12a+8=0

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

12a=-8

a=-8/12

a=-2/3

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