3x-15=21x-2

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Solution for 3x-15=21x-2 equation: 



3x-15=21x-2

We move all terms to the left:

3x-15-(21x-2)=0

We get rid of parentheses

3x-21x+2-15=0

We add all the numbers together, and all the variables

-18x-13=0

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

-18x=13

x=13/-18

x=-13/18

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