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Popular >

x+y=9,x-y=5

Solution

x + y = 9, x - y = 5

Solution

x = 7, y = 2

Solution steps

[x + y = 9 x - y = 5]

Isolate

x

for

x + y = 9 : x = 9 - y

Substitute

x = 9 - y

[9 - y - y = 5]

Simplify

[9 - 2 y = 5]

Isolate

y

for

9 - 2 y = 5 : y = 2

For

x = 9 - y

Substitute

y = 2

x = 9 - 2

Simplify

x = 7

The solutions to the system of equations are:

x = 7, y = 2

Popular Examples

x + y = 9, x - y = 3

- 7 x = 8, 4 - 7 x = 84

3x-5y=7,4x-3y=3

3 x - 5 y = 7, 4 x - 3 y = 3

2x-3y=14,5x+2y=16

2 x - 3 y = 14, 5 x + 2 y = 16

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

Frequently Asked Questions (FAQ)

What is x+y=9,x-y=5 ?
The solution to x+y=9,x-y=5 is x=7,y=2