120(3+x)+2(40x-15)=-13-57

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Solution for 120(3+x)+2(40x-15)=-13-57 equation: 



120(3+x)+2(40x-15)=-13-57

We move all terms to the left:

120(3+x)+2(40x-15)-(-13-57)=0

We add all the numbers together, and all the variables

120(x+3)+2(40x-15)-(-70)=0

We add all the numbers together, and all the variables

120(x+3)+2(40x-15)+70=0

We multiply parentheses

120x+80x+360-30+70=0

We add all the numbers together, and all the variables

200x+400=0

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

200x=-400

x=-400/200

x=-2

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