SOLUTION: x+y=38 x=2y-25 must solve using substitution

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Question 37703: x+y=38
x=2y-25
must solve using substitution
Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
IF X=2Y-25 THEN SUBSTITUTING (2Y-25) FOR X IN EQUATION 1 WE GET
(2Y-25)+Y=38 OR 3Y=63 OR Y=63/3 OR Y=21 THE X=2*21-25 OR X=42-25 OR X=17
PROOF 1+21=38 & 17=2*21-25OR 17=42-25 OR 17=17