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=4

Solution

x + y = 4, x - y = 4

Solution

x = 4, y = 0

Solution steps

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

Isolate

x

for

x + y = 4 : x = 4 - y

Substitute

x = 4 - y

[4 - y - y = 4]

Simplify

[4 - 2 y = 4]

Isolate

y

for

4 - 2 y = 4 : y = 0

For

x = 4 - y

Substitute

y = 0

x = 4 - 0

Simplify

x = 4

The solutions to the system of equations are:

x = 4, y = 0

Popular Examples

2x-5y=11,3x+6y=3

2 x - 5 y = 11, 3 x + 6 y = 3

5 x + 3 y = 6, 5 x + y = 4

x/(13)-y/7 =6,x-10y-8=0

\frac{x}{13} - \frac{y}{7} = 6, x - 10 y - 8 = 0

2*3^x-3*2^y=42,3^{x+1}-2^{y+1}=73

2 \cdot 3^{x} - 3 \cdot 2^{y} = 42, 3^{x + 1} - 2^{y + 1} = 73

4m-3n=20,m-6n=12

4 m - 3 n = 20, m - 6 n = 12

Frequently Asked Questions (FAQ)

What is x+y=4,x-y=4 ?
The solution to x+y=4,x-y=4 is x=4,y=0