-4a+9=7a-31

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Solution for -4a+9=7a-31 equation: 



-4a+9=7a-31

We move all terms to the left:

-4a+9-(7a-31)=0

We get rid of parentheses

-4a-7a+31+9=0

We add all the numbers together, and all the variables

-11a+40=0

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

-11a=-40

a=-40/-11

a=3+7/11

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