en

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

x+y=4,x-y=3

Solution

x + y = 4, x - y = 3

Solution

x = \frac{7}{2}, y = \frac{1}{2}

Solution steps

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

Isolate

x

for

x + y = 4 : x = 4 - y

Substitute

x = 4 - y

[4 - y - y = 3]

Simplify

[4 - 2 y = 3]

Isolate

y

for

4 - 2 y = 3 : y = \frac{1}{2}

For

x = 4 - y

Substitute

y = \frac{1}{2}

x = 4 - \frac{1}{2}

4 - \frac{1}{2} = \frac{7}{2}

x = \frac{7}{2}

The solutions to the system of equations are:

x = \frac{7}{2}, y = \frac{1}{2}

Popular Examples

4x+y=17,2x+y=11

4 x + y = 17, 2 x + y = 11

y = - 2, x = 3

x + 3 y = 6, 2 x + y = - 3

3x+2y=6,2x-3y=17

3 x + 2 y = 6, 2 x - 3 y = 17

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

Frequently Asked Questions (FAQ)

What is x+y=4,x-y=3 ?
The solution to x+y=4,x-y=3 is x= 7/2 ,y= 1/2