X-7y=40

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Solution for X-7y=40 equation: 



X-7X=40

We move all terms to the left:

X-7X-(40)=0

We add all the numbers together, and all the variables

-6X-40=0

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

-6X=40

X=40/-6

X=-6+2/3

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