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Popular >

x+y=5,x-y=7

Solution

x + y = 5, x - y = 7

Solution

x = 6, y = - 1

Solution steps

[x + y = 5 x - y = 7]

Isolate

x

for

x + y = 5 : x = 5 - y

Substitute

x = 5 - y

[5 - y - y = 7]

Simplify

[5 - 2 y = 7]

Isolate

y

for

5 - 2 y = 7 : y = - 1

For

x = 5 - y

Substitute

y = - 1

x = 5 - (- 1)

Simplify

x = 6

The solutions to the system of equations are:

x = 6, y = - 1

Popular Examples

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

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}

Frequently Asked Questions (FAQ)

What is x+y=5,x-y=7 ?
The solution to x+y=5,x-y=7 is x=6,y=-1