10x+20(13-x)=170

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Solution for 10x+20(13-x)=170 equation: 



10x+20(13-x)=170

We move all terms to the left:

10x+20(13-x)-(170)=0

We add all the numbers together, and all the variables

10x+20(-1x+13)-170=0

We multiply parentheses

10x-20x+260-170=0

We add all the numbers together, and all the variables

-10x+90=0

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

-10x=-90

x=-90/-10

x=+9

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