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Popular >

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

Solution

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

Solution

x = - 2, y = 1

Solution steps

[x + 2 y = 0 - x + 2 y = 4]

Isolate

x

for

x + 2 y = 0 : x = - 2 y

Substitute

x = - 2 y

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

Simplify

[4 y = 4]

Isolate

y

for

4 y = 4 : y = 1

For

x = - 2 y

Substitute

y = 1

x = - 2 \cdot 1

Simplify

x = - 2

The solutions to the system of equations are:

x = - 2, y = 1

Popular Examples

2x+3y=19,2x+y=9

2 x + 3 y = 19, 2 x + y = 9

c = 19, a = 8, b = 9

x + 2 y = 2, 2 x + 4 y = 4

x+5y=-2,3x-4y=-25

x + 5 y = - 2, 3 x - 4 y = - 25

10r-9a+6=7,r-6a-3=0

10 r - 9 a + 6 = 7, r - 6 a - 3 = 0

Frequently Asked Questions (FAQ)

What is x+2y=0,-x+2y=4 ?
The solution to x+2y=0,-x+2y=4 is x=-2,y=1