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Popular >

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

Solution

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

Solution

x = 1, y = 1

Solution steps

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

Isolate

x

for

x + y = 2 : x = 2 - y

Substitute

x = 2 - y

[2 (2 - y) - y = 1]

Simplify

[4 - 3 y = 1]

Isolate

y

for

4 - 3 y = 1 : y = 1

For

x = 2 - y

Substitute

y = 1

x = 2 - 1

Simplify

x = 1

The solutions to the system of equations are:

x = 1, y = 1

Popular Examples

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

2 y - x^{2} = 3, y - x = 1

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

-3x+2y=-1,4x-y=-1/2

- 3 x + 2 y = - 1, 4 x - y = - \frac{1}{2}

12x+8y=-92,-2.5y+x=-33

12 x + 8 y = - 92, - 2.5 y + x = - 33

Frequently Asked Questions (FAQ)

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