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(3x-21)^1/2=x-7
We move all terms to the left:
(3x-21)^1/2-(x-7)=0
We get rid of parentheses
(3x-21)^1/2-x+7=0
We multiply all the terms by the denominator
(3x-21)^1-x*2+7*2=0
We add all the numbers together, and all the variables
(3x-21)^1-x*2+14=0
Wy multiply elements
(3x-21)^1-2x+14=0
We add all the numbers together, and all the variables
-2x+(3x-21)^1+14=0
We move all terms containing x to the left, all other terms to the right
-2x+(3x-21)^1=-14
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