SOLUTION: solve the system of equations using substitution 5x+y=32 y=3x

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Question 383650: solve the system of equations using substitution 5x+y=32
y=3x
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
solve the system of equations using substitution 5x+y=32
y=3x
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Sub is a good choice, since y is already solved for in the 2nd eqn.
Sub for y in the 1st eqn
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5x + y = 32
5x + 3x = 32
8x = 32
x = 4
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y = 3x
y = 12