2x-3=4x-21

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Solution for 2x-3=4x-21 equation:



2x-3=4x-21
We move all terms to the left:
2x-3-(4x-21)=0
We get rid of parentheses
2x-4x+21-3=0
We add all the numbers together, and all the variables
-2x+18=0
We move all terms containing x to the left, all other terms to the right
-2x=-18
x=-18/-2
x=+9

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