8x+20=x+90

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Solution for 8x+20=x+90 equation: 



8x+20=x+90

We move all terms to the left:

8x+20-(x+90)=0

We get rid of parentheses

8x-x-90+20=0

We add all the numbers together, and all the variables

7x-70=0

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

7x=70

x=70/7

x=10

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