8x+20+2x=90

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Solution for 8x+20+2x=90 equation: 



8x+20+2x=90

We move all terms to the left:

8x+20+2x-(90)=0

We add all the numbers together, and all the variables

10x-70=0

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

10x=70

x=70/10

x=7

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