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Popular >

x+y=2,x-y=20

Solution

x + y = 2, x - y = 20

Solution

x = 11, y = - 9

Solution steps

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

Isolate

x

for

x + y = 2 : x = 2 - y

Substitute

x = 2 - y

[2 - y - y = 20]

Simplify

[2 - 2 y = 20]

Isolate

y

for

2 - 2 y = 20 : y = - 9

For

x = 2 - y

Substitute

y = - 9

x = 2 - (- 9)

Simplify

x = 11

The solutions to the system of equations are:

x = 11, y = - 9

Popular Examples

5x+3y=-7,3x-2y=-8

5 x + 3 y = - 7, 3 x - 2 y = - 8

4x-2y=16,3x-4y=7

4 x - 2 y = 16, 3 x - 4 y = 7

4x+10y=-4,6x-15y=0

4 x + 10 y = - 4, 6 x - 15 y = 0

8s=1,3t=26.31,t=1

8 s = 1, 3 t = 26.31, t = 1

2x+5y=-11,2x-y=11

2 x + 5 y = - 11, 2 x - y = 11

Frequently Asked Questions (FAQ)

What is x+y=2,x-y=20 ?
The solution to x+y=2,x-y=20 is x=11,y=-9