(X+7)+(x+3)=100

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Solution for (X+7)+(x+3)=100 equation: 



(X+7)+(X+3)=100

We move all terms to the left:

(X+7)+(X+3)-(100)=0

We get rid of parentheses

X+X+7+3-100=0

We add all the numbers together, and all the variables

2X-90=0

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

2X=90

X=90/2

X=45

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