21x-6=13.5x+31.5

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Solution for 21x-6=13.5x+31.5 equation: 



21x-6=13.5x+31.5

We move all terms to the left:

21x-6-(13.5x+31.5)=0

We get rid of parentheses

21x-13.5x-31.5-6=0

We add all the numbers together, and all the variables

7.5x-37.5=0

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

7.5x=37.5

x=37.5/7.5

x=5

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