-243=-9(10+x)+12x

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Solution for -243=-9(10+x)+12x equation: 



-243=-9(10+x)+12x

We move all terms to the left:

-243-(-9(10+x)+12x)=0

We add all the numbers together, and all the variables

-(-9(x+10)+12x)-243=0



We calculate terms in parentheses: -(-9(x+10)+12x), so:

-9(x+10)+12x

We add all the numbers together, and all the variables

12x-9(x+10)

We multiply parentheses

12x-9x-90

We add all the numbers together, and all the variables

3x-90

Back to the equation:

-(3x-90)



We get rid of parentheses

-3x+90-243=0

We add all the numbers together, and all the variables

-3x-153=0

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

-3x=153

x=153/-3

x=-51

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