What is -m+n=-1,4m-2n=5 ?

The solution to -m+n=-1,4m-2n=5 is m= 3/2 ,n= 1/2

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-m+n=-1,4m-2n=5

- m + n = - 1, 4 m - 2 n = 5

m = \frac{3}{2}, n = \frac{1}{2}

Solution steps

[- m + n = - 1 4 m - 2 n = 5]

Isolate

m

for

- m + n = - 1 : m = 1 + n

Substitute

m = 1 + n

[4 (1 + n) - 2 n = 5]

Simplify

[4 + 2 n = 5]

Isolate

n

for

4 + 2 n = 5 : n = \frac{1}{2}

For

m = 1 + n

Substitute

n = \frac{1}{2}

m = 1 + \frac{1}{2}

1 + \frac{1}{2} = \frac{3}{2}

m = \frac{3}{2}

The solutions to the system of equations are:

m = \frac{3}{2}, n = \frac{1}{2}

4 (x - y) = - 2, 3 x - 7 y = - 25 - 2 (x + y)

x - y = 3, 2 x + 4 y = 12

x + y = 2, 4 - 3 x + y = 0

2 x - 3 y = 8, 4 x - 6 y = 9

m = 2, b = 1