SOLUTION: Solve the pairs of equations by using the substitituion method. x + 2y = 10 x = 3y

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Question 43960: Solve the pairs of equations by using the substitituion method.
x + 2y = 10
x = 3y
Answer by fractalier(2101) About Me  (Show Source):
You can put this solution on YOUR website!
Okay from
x + 2y = 10
x = 3y
substitute 3y in for x in the first equation and get
3y + 2y = 10
5y = 10
y = 2
and thus
x = 3y = 6
Our solution is (6, 2)