-9x+100=-2x-21

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Solution for -9x+100=-2x-21 equation: 



-9x+100=-2x-21

We move all terms to the left:

-9x+100-(-2x-21)=0

We get rid of parentheses

-9x+2x+21+100=0

We add all the numbers together, and all the variables

-7x+121=0

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

-7x=-121

x=-121/-7

x=17+2/7

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