en

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

7x+y=19,4x-y=3

Solution

7 x + y = 19, 4 x - y = 3

Solution

x = 2, y = 5

Solution steps

[7 x + y = 19 4 x - y = 3]

Isolate

x

for

7 x + y = 19 : x = \frac{19 - y}{7}

Substitute

x = \frac{19 - y}{7}

[4 \cdot \frac{19 - y}{7} - y = 3]

Simplify

[\frac{76 - 11 y}{7} = 3]

Isolate

y

for

\frac{76 - 11 y}{7} = 3 : y = 5

For

x = \frac{19 - y}{7}

Substitute

y = 5

x = \frac{19 - 5}{7}

\frac{19 - 5}{7} = 2

x = 2

The solutions to the system of equations are:

x = 2, y = 5

Popular Examples

2x+5y=5,-3x+7y=36

2 x + 5 y = 5, - 3 x + 7 y = 36

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

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

3x-5y=4,2y+7=9x

3 x - 5 y = 4, 2 y + 7 = 9 x

a + b = 8, a - b = 2

x^2+4x-5=0,x=1-1

x^{2} + 4 x - 5 = 0, x = 1 - 1

Frequently Asked Questions (FAQ)

What is 7x+y=19,4x-y=3 ?
The solution to 7x+y=19,4x-y=3 is x=2,y=5