SOLUTION: HOW DO YOU SOLVE X+Y=56 AND X+3Y=56 using substitution

Question 442015: HOW DO YOU SOLVE X+Y=56 AND X+3Y=56 using substitution
Answer by rwm(914) (Show Source): You can put this solution on YOUR website!
y=0
Why are you shouting?
It stands to reason that if have 56 things and take away x I can't y have and 3y
if y is more than zero
y=3y
otherwise we get the absurd
y/y=3
which we know can't be.
y/y must be 1 unless y/y is undefined which is the case if y =0

RELATED QUESTIONS
Solve by using the substitution method x+y=56... (answered by rfer,Fombitz)

using substitution 2x-y=0... (answered by vleith)

how do you solve y=2x-9 x+3y=8 using substitution? (answered by ewatrrr)

by using the system of substitution, how do you solve y=11-2x,... (answered by lynnlo)

How do you solve this using substitution? 2x = y - 4 -3y = x -... (answered by Dionysus10474)

I am attempting to solve two equations using the substitution method. x + y = 56... (answered by ankor@dixie-net.com)

what does the x any y equal using substitution in both equations 2x+y=0;... (answered by checkley79)

x+y=56, 3x+y=56, how do I solve this by substition? Please... (answered by OmniMaestra)

How do I solve this system using the substitution method? x-y=3... (answered by Alan3354)