SOLUTION: m-2n=16, 4m+n=1

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Question 977207: m-2n=16, 4m+n=1
Answer by MathLover1(20849) About Me  (Show Source):
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m-2n=16.....eq.1
4m%2Bn=1.....eq.2.....both sides multiply by 2
--------------------------------
m-2n=16.....eq.1
8m%2B2n=2.....eq.2
-------------------------------add eq.1 and eq.2
m-cross%282n%29%2B8m%2Bcross%282n%29=16%2B2
9m=18
m=18%2F9
highlight%28m=2%29....substitute in eq.1 and solve for n
2-2n=16.....eq.1
2-16=2n
-14=2n
n=-14%2F2
highlight%28n=-7%29