120-8x=30+x

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Solution for 120-8x=30+x equation: 



120-8x=30+x

We move all terms to the left:

120-8x-(30+x)=0

We add all the numbers together, and all the variables

-8x-(x+30)+120=0

We get rid of parentheses

-8x-x-30+120=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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