-2a-5=7a+13

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Solution for -2a-5=7a+13 equation: 



-2a-5=7a+13

We move all terms to the left:

-2a-5-(7a+13)=0

We get rid of parentheses

-2a-7a-13-5=0

We add all the numbers together, and all the variables

-9a-18=0

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

-9a=18

a=18/-9

a=-2

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