21x-3=-3x+69

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Solution for 21x-3=-3x+69 equation: 



21x-3=-3x+69

We move all terms to the left:

21x-3-(-3x+69)=0

We get rid of parentheses

21x+3x-69-3=0

We add all the numbers together, and all the variables

24x-72=0

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

24x=72

x=72/24

x=3

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