X+21+x=35

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Solution for X+21+x=35 equation:



X+21+X=35
We move all terms to the left:
X+21+X-(35)=0
We add all the numbers together, and all the variables
2X-14=0
We move all terms containing X to the left, all other terms to the right
2X=14
X=14/2
X=7

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