180=90-8x-12x

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Solution for 180=90-8x-12x equation: 



180=90-8x-12x

We move all terms to the left:

180-(90-8x-12x)=0

We add all the numbers together, and all the variables

-(-20x+90)+180=0

We get rid of parentheses

20x-90+180=0

We add all the numbers together, and all the variables

20x+90=0

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

20x=-90

x=-90/20

x=-4+1/2

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