(X+12)+x=70

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Solution for (X+12)+x=70 equation: 



(X+12)+X=70

We move all terms to the left:

(X+12)+X-(70)=0

We add all the numbers together, and all the variables

X+(X+12)-70=0

We get rid of parentheses

X+X+12-70=0

We add all the numbers together, and all the variables

2X-58=0

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

2X=58

X=58/2

X=29

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