SOLUTION: Solve using the substitution method. x + 3y = 18 8x + 4y = 24

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Question 955375: Solve using the substitution method.
x + 3y = 18
8x + 4y = 24

Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
From eq. 1,
x=-3y%2B18
Substituting,
8%28-3y%2B18%29%2B4y=24
-24y%2B144%2B4y=24
-20y=-120
y=6
Then,
x=-3%286%29%2B18
x=-18%2B18
x=0