x.x/7=20

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Solution for x.x/7=20 equation: 



x.x/7=20

We move all terms to the left:

x.x/7-(20)=0

We multiply all the terms by the denominator


x.x-20*7=0

We add all the numbers together, and all the variables

x.x-140=0

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

x.x=140

x=140/1

x=140

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