SOLUTION: STATEMENT REASON 12-x=20-5x : Given 12+4x=20 : ___________ ________ 4x=8 : ___________ ________ x=2 : ___________ ___

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Question 115057This question is from textbook Lifepac math
: STATEMENT REASON
12-x=20-5x : Given
12+4x=20 : ____________________
4x=8 : ____________________
x=2 : ____________________
Supply the reasons in the proofs. Really don't understand the WHY in determining subtr,divis,or additi of equality.
This question is from textbook Lifepac math

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
STATEMENT REASON
12-x=20-5x : Given
12+4x=20 : Add 5x to both sides of the equation
4x=8 : Subtract 12 from both sides of the equation
x=2 : Divide both sides of the equation by 4
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Cheers,
Stan H.