-243=-90+(9x)

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Solution for -243=-90+(9x) equation: 



-243=-90+(9x)

We move all terms to the left:

-243-(-90+(9x))=0

We add all the numbers together, and all the variables

-(9x-90)-243=0

We get rid of parentheses

-9x+90-243=0

We add all the numbers together, and all the variables

-9x-153=0

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

-9x=153

x=153/-9

x=-17

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