SOLUTION: Solve each system of linear equation by method 2x + y = 4 x + 2y = 14 Please help

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Question 336670: Solve each system of linear equation by method
2x + y = 4
x + 2y = 14
Please help

Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
1.2x+%2B+y+=+4
2.x+%2B+2y+=+14
Use substitution,
From eq. 1,
y=-2x%2B4
Substitute into eq. 2,
x%2B2%28-2x%2B4%29=14
x-4x%2B8=14
-3x%2B8=14
Complete this to solve for x.
Then back-substitute into eq. 1 to find y.