X+x-7=43

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Solution for X+x-7=43 equation: 



X+X-7=43

We move all terms to the left:

X+X-7-(43)=0

We add all the numbers together, and all the variables

2X-50=0

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

2X=50

X=50/2

X=25

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