10(10+x-3)=9(9+x)

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Solution for 10(10+x-3)=9(9+x) equation: 



10(10+x-3)=9(9+x)

We move all terms to the left:

10(10+x-3)-(9(9+x))=0

We add all the numbers together, and all the variables

10(x+7)-(9(x+9))=0

We multiply parentheses

10x-(9(x+9))+70=0



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

9(x+9)

We multiply parentheses

9x+81

Back to the equation:

-(9x+81)



We get rid of parentheses

10x-9x-81+70=0

We add all the numbers together, and all the variables

x-11=0

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

x=11

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