(x+50)+(x+70)=100

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Solution for (x+50)+(x+70)=100 equation: 



(x+50)+(x+70)=100

We move all terms to the left:

(x+50)+(x+70)-(100)=0

We get rid of parentheses

x+x+50+70-100=0

We add all the numbers together, and all the variables

2x+20=0

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

2x=-20

x=-20/2

x=-10

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