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Popular >

-x+y=1,-2x+4y=-8

Solution

- x + y = 1, - 2 x + 4 y = - 8

Solution

x = - 6, y = - 5

Solution steps

[- x + y = 1 - 2 x + 4 y = - 8]

Isolate

x

for

- x + y = 1 : x = - 1 + y

Substitute

x = - 1 + y

[- 2 (- 1 + y) + 4 y = - 8]

Simplify

[2 + 2 y = - 8]

Isolate

y

for

2 + 2 y = - 8 : y = - 5

For

x = - 1 + y

Substitute

y = - 5

x = - 1 - 5

Simplify

x = - 6

The solutions to the system of equations are:

x = - 6, y = - 5

Popular Examples

a + b = 1, a - b = 16

x+7y=10,2x+y=13

x + 7 y = 10, 2 x + y = 13

x + y = 9, 2 x - y = 3

2x+y-2z=10,3x+2y+2z=1,5x+4y+3z=4

2 x + y - 2 z = 10, 3 x + 2 y + 2 z = 1, 5 x + 4 y + 3 z = 4

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

Frequently Asked Questions (FAQ)

What is -x+y=1,-2x+4y=-8 ?
The solution to -x+y=1,-2x+4y=-8 is x=-6,y=-5