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)   (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
=========================
Cheers,
Stan H.

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