If point A(3, -1) lies on the graph of equation 4m + 5n = 7 then what is m and n ? *
1 point
m = 3, n = -1.
m= -1, n=4.
m = 3, n = 0
m = 0, n = 1
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If 4m+5n=7. Find m when n=−5
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Correct option is A)
4m+5n=7
Put n=−5 in above equation
4m+5(−5)=7
4m−25=7
4m=7+25
4m=32
m=
4
32
m=8
.
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