-5a+21=6a+40

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Solution for -5a+21=6a+40 equation: 



-5a+21=6a+40

We move all terms to the left:

-5a+21-(6a+40)=0

We get rid of parentheses

-5a-6a-40+21=0

We add all the numbers together, and all the variables

-11a-19=0

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

-11a=19

a=19/-11

a=-1+8/11

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