x+70+2x=90

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Solution for x+70+2x=90 equation: 



x+70+2x=90

We move all terms to the left:

x+70+2x-(90)=0

We add all the numbers together, and all the variables

3x-20=0

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

3x=20

x=20/3

x=6+2/3

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