Question 381089: I need help to solve by substitution method for 6m+n=46, m-9n=81. Thanks!
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! substitution method for
6m+n=46,
m-9n=81
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m = 9n+81
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Substitute into the 1st equation and solve for "n":
6(9n+81)+ n = 46
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54n + 486 + n = 46
55n = -440
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n = -8
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Substitute into m = 9n+81 to solve for "n":
m = 9(-8)+81
m = 9
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Cheers,
Stan H.
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