7=7(x-9)-3x

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Solution for 7=7(x-9)-3x equation: 



7=7(x-9)-3x

We move all terms to the left:

7-(7(x-9)-3x)=0



We calculate terms in parentheses: -(7(x-9)-3x), so:

7(x-9)-3x

We add all the numbers together, and all the variables

-3x+7(x-9)

We multiply parentheses

-3x+7x-63

We add all the numbers together, and all the variables

4x-63

Back to the equation:

-(4x-63)



We get rid of parentheses

-4x+63+7=0

We add all the numbers together, and all the variables

-4x+70=0

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

-4x=-70

x=-70/-4

x=17+1/2

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