Question 452308: Solve by substitution method.
5x-8y=9
9x+91=y
Thank you,
Missy
Answer by Alan3354(69443)   (Show Source):
You can put this solution on YOUR website! Do it like this one. y is already solved for, so sub for y
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Solve by substitution.
6m+n=52
m-5n=19 --> m = 5n+19
Sub for m in the 1st eqn
6m+n=52
6(5n+19) + n = 52
30n + 114 + n = 52
31n = -62
n = -2
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6m+n=52
6m - 2 = 52
6m = 54
m = 9
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