-7=-8+x/20

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Solution for -7=-8+x/20 equation: 



-7=-8+x/20

We move all terms to the left:

-7-(-8+x/20)=0

We add all the numbers together, and all the variables

-(x/20-8)-7=0

We get rid of parentheses

-x/20+8-7=0

We multiply all the terms by the denominator


-x+8*20-7*20=0

We add all the numbers together, and all the variables

-1x+20=0

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

-x=-20

x=-20/-1

x=+20

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