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Popular >

-5x+y=6,5x-7y=18

Solution

- 5 x + y = 6, 5 x - 7 y = 18

Solution

x = - 2, y = - 4

Solution steps

[- 5 x + y = 6 5 x - 7 y = 18]

Isolate

x

for

- 5 x + y = 6 : x = - \frac{6 - y}{5}

Substitute

x = - \frac{6 - y}{5}

[5 (- \frac{6 - y}{5}) - 7 y = 18]

Simplify

[- 6 - 6 y = 18]

Isolate

y

for

- 6 - 6 y = 18 : y = - 4

For

x = - \frac{6 - y}{5}

Substitute

y = - 4

x = - \frac{6 - ( - 4 )}{5}

- \frac{6 - ( - 4 )}{5} = - 2

x = - 2

The solutions to the system of equations are:

x = - 2, y = - 4

Popular Examples

72x+3y=6,3x-2y=7

72 x + 3 y = 6, 3 x - 2 y = 7

-7x+6y=-2,9x+3y=8

- 7 x + 6 y = - 2, 9 x + 3 y = 8

x - y = 2, 3 x + 4 y = 27

x + 2 y = 2, 3 x - 4 y = 6

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

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

Frequently Asked Questions (FAQ)

What is -5x+y=6,5x-7y=18 ?
The solution to -5x+y=6,5x-7y=18 is x=-2,y=-4