a+4=4a-89

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Solution for a+4=4a-89 equation: 



a+4=4a-89

We move all terms to the left:

a+4-(4a-89)=0

We get rid of parentheses

a-4a+89+4=0

We add all the numbers together, and all the variables

-3a+93=0

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

-3a=-93

a=-93/-3

a=+31

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