Posted by upbeat on Tuesday, July 20, 2010 at 12:35pm.
solve by the substitution method
the solution is (___,___)
substitution method - Henry, Tuesday, July 20, 2010 at 3:38pm
1. 2m + n = 9
m - 6n = 50
Using Eq.1, solve for n:
n = 9 - 2m
Substitute 9 - 2m for n in Eq. 2:
m -6(9 -2m) = 50
Solve for m:
m - 54 + 12m = 50
m = 8
Substitute 8 for m in Eq. 1:
2(8) + n = 9
n = -7.
Solution: m = 8, and n = -7.
substitution method - dawn, Monday, November 8, 2010 at 11:52pm
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