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

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



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

We move all terms to the left:

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

We multiply parentheses

9x-(10(x-10))+90=0



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

10(x-10)

We multiply parentheses

10x-100

Back to the equation:

-(10x-100)



We get rid of parentheses

9x-10x+100+90=0

We add all the numbers together, and all the variables

-1x+190=0

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

-x=-190

x=-190/-1

x=+190

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