2+4a-7a+8=-29

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Solution for 2+4a-7a+8=-29 equation: 



2+4a-7a+8=-29

We move all terms to the left:

2+4a-7a+8-(-29)=0

We add all the numbers together, and all the variables

-3a+39=0

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

-3a=-39

a=-39/-3

a=+13

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