3+6x=9x-21

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Solution for 3+6x=9x-21 equation:



3+6x=9x-21
We move all terms to the left:
3+6x-(9x-21)=0
We get rid of parentheses
6x-9x+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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