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Popular >

x+2y=-4,3x-2y=20

Solution

x + 2 y = - 4, 3 x - 2 y = 20

Solution

x = 4, y = - 4

Solution steps

[x + 2 y = - 4 3 x - 2 y = 20]

Isolate

x

for

x + 2 y = - 4 : x = - 4 - 2 y

Substitute

x = - 4 - 2 y

[3 (- 4 - 2 y) - 2 y = 20]

Simplify

[- 12 - 8 y = 20]

Isolate

y

for

- 12 - 8 y = 20 : y = - 4

For

x = - 4 - 2 y

Substitute

y = - 4

x = - 4 - 2 (- 4)

- 4 - 2 (- 4) = 4

x = 4

The solutions to the system of equations are:

x = 4, y = - 4

Popular Examples

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

x+5y=-21,-2x+3y=3

x + 5 y = - 21, - 2 x + 3 y = 3

x/(10)+y/5-1=0, x/8+y/6 =2

\frac{x}{10} + \frac{y}{5} - 1 = 0, \frac{x}{8} + \frac{y}{6} = 2

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

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

2 x - y = 0, x + y = 15

Frequently Asked Questions (FAQ)

What is x+2y=-4,3x-2y=20 ?
The solution to x+2y=-4,3x-2y=20 is x=4,y=-4