SOLUTION: Which reason justifies the statement below? “If PQ+RS=PS and RS=XY, then PQ+XY=PS

SOLUTION: Which reason justifies the statement below? “If PQ+RS=PS and RS=XY, then PQ+XY=PS

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Question 1171820: Which reason justifies the statement below?

“If PQ+RS=PS and RS=XY, then PQ+XY=PS
Answer by math_tutor2020(3820) (Show Source): You can put this solution on YOUR website!

Answer: Substitution Property

We substituted XY in for RS
That's how we went from PQ+RS = PS to PQ+XY = PS
This is valid because RS = XY, ie RS is the same as XY.

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