28-7x=91

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Solution for 28-7x=91 equation: 



28-7x=91

We move all terms to the left:

28-7x-(91)=0

We add all the numbers together, and all the variables

-7x-63=0

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

-7x=63

x=63/-7

x=-9

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