-3=3x+21

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Solution for -3=3x+21 equation:



-3=3x+21
We move all terms to the left:
-3-(3x+21)=0
We get rid of parentheses
-3x-21-3=0
We add all the numbers together, and all the variables
-3x-24=0
We move all terms containing x to the left, all other terms to the right
-3x=24
x=24/-3
x=-8

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