-7a+4a=8-4a-16

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Solution for -7a+4a=8-4a-16 equation: 



-7a+4a=8-4a-16

We move all terms to the left:

-7a+4a-(8-4a-16)=0

We add all the numbers together, and all the variables

-7a+4a-(-4a-8)=0

We add all the numbers together, and all the variables

-3a-(-4a-8)=0

We get rid of parentheses

-3a+4a+8=0

We add all the numbers together, and all the variables

a+8=0

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

a=-8

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