3x+5=21x-15

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Solution for 3x+5=21x-15 equation: 



3x+5=21x-15

We move all terms to the left:

3x+5-(21x-15)=0

We get rid of parentheses

3x-21x+15+5=0

We add all the numbers together, and all the variables

-18x+20=0

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

-18x=-20

x=-20/-18

x=1+1/9

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