X+20y=100

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Solution for X+20y=100 equation:



X+20X=100
We move all terms to the left:
X+20X-(100)=0
We add all the numbers together, and all the variables
21X-100=0
We move all terms containing X to the left, all other terms to the right
21X=100
X=100/21
X=4+16/21

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