SOLUTION: Solve the following system of equations using either the substitution method or the addition method: x = 2y + 7 3y - x = 8

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Question 1046024: Solve the following system of equations using either the substitution method or the addition method:
x = 2y + 7
3y - x = 8

Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

x+=+2y+%2B+7+..........eq.1....since solved for x, substitute it in eq.2
3y+-+x+=+8..........eq.2
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3y+-+%282y+%2B+7+%29+=+8.......solve for y

3y+-+2y+-+7++=+8
y++=+8%2B7
highlight%28y++=15%29
find x
x+=+2y+%2B+7+..........eq.1
x+=+2%2A15+%2B+7+
highlight%28x+=+37%29+