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