-40-7a=-7-25-15a

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Solution for -40-7a=-7-25-15a equation: 



-40-7a=-7-25-15a

We move all terms to the left:

-40-7a-(-7-25-15a)=0

We add all the numbers together, and all the variables

-7a-(-15a-32)-40=0

We get rid of parentheses

-7a+15a+32-40=0

We add all the numbers together, and all the variables

8a-8=0

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

8a=8

a=8/8

a=1

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