X-3x/7=80

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Solution for X-3x/7=80 equation: 



X-3X/7=80

We move all terms to the left:

X-3X/7-(80)=0

We multiply all the terms by the denominator


X*7-3X-80*7=0

We add all the numbers together, and all the variables

-3X+X*7-560=0

Wy multiply elements

-3X+7X-560=0

We add all the numbers together, and all the variables

4X-560=0

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

4X=560

X=560/4

X=140

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