3(7-2x)=3(x+5)-84

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Solution for 3(7-2x)=3(x+5)-84 equation: 



3(7-2x)=3(x+5)-84

We move all terms to the left:

3(7-2x)-(3(x+5)-84)=0

We add all the numbers together, and all the variables

3(-2x+7)-(3(x+5)-84)=0

We multiply parentheses

-6x-(3(x+5)-84)+21=0



We calculate terms in parentheses: -(3(x+5)-84), so:

3(x+5)-84

We multiply parentheses

3x+15-84

We add all the numbers together, and all the variables

3x-69

Back to the equation:

-(3x-69)



We get rid of parentheses

-6x-3x+69+21=0

We add all the numbers together, and all the variables

-9x+90=0

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

-9x=-90

x=-90/-9

x=+10

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