X+7+x+2=45

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Solution for X+7+x+2=45 equation: 



X+7+X+2=45

We move all terms to the left:

X+7+X+2-(45)=0

We add all the numbers together, and all the variables

2X-36=0

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

2X=36

X=36/2

X=18

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