X-5+x-7=12

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Solution for X-5+x-7=12 equation: 



X-5+X-7=12

We move all terms to the left:

X-5+X-7-(12)=0

We add all the numbers together, and all the variables

2X-24=0

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

2X=24

X=24/2

X=12

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