70-2x=90-42

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Solution for 70-2x=90-42 equation: 



70-2x=90-42

We move all terms to the left:

70-2x-(90-42)=0

We add all the numbers together, and all the variables

-2x+70-48=0

We add all the numbers together, and all the variables

-2x+22=0

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

-2x=-22

x=-22/-2

x=+11

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