X+21x=-7

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Solution for X+21x=-7 equation: 



X+21X=-7

We move all terms to the left:

X+21X-(-7)=0

We add all the numbers together, and all the variables

22X+7=0

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

22X=-7

X=-7/22

X=-7/22

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