3(x)=21x+13

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Solution for 3(x)=21x+13 equation: 



3(x)=21x+13

We move all terms to the left:

3(x)-(21x+13)=0

We get rid of parentheses

3x-21x-13=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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