4 m + n= 10
8 m - 4 n= 8
find unknown
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Answer:
m=2 n=2
Step-by-step explanation:
4 m + n= 10
multiplying by 2
8m + 2n = 20
subtracting the equations
8m + 2n = 20
8m - 4n = 8
____________
0m + 6n = 12
n = 2
substituting n=2 in eq
4m + n = 10
4m + (2) = 10
4m = 8
m=2
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