(x+70)+(20-x)=90

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Solution for (x+70)+(20-x)=90 equation: 



(x+70)+(20-x)=90

We move all terms to the left:

(x+70)+(20-x)-(90)=0

We add all the numbers together, and all the variables

(x+70)+(-1x+20)-90=0

We get rid of parentheses

x-1x+70+20-90=0

We add all the numbers together, and all the variables

=0

x=0/1

x=0

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