-3x+21=2x-64

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Solution for -3x+21=2x-64 equation: 



-3x+21=2x-64

We move all terms to the left:

-3x+21-(2x-64)=0

We get rid of parentheses

-3x-2x+64+21=0

We add all the numbers together, and all the variables

-5x+85=0

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

-5x=-85

x=-85/-5

x=+17

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