SOLUTION: Solve using substitution y=x-4 x+3y=12

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Question 377294: Solve using substitution
y=x-4
x+3y=12
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
1.y=x-4
2.x%2B3y=12
Substitute eq. 1 into eq. 2,
x%2B3%28x-4%29=12
x%2B3x-12=12
4x=24
highlight%28x=6%29
Then from eq. 1,
y=6-4
highlight%28y=2%29