en

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

3x+4y=2,7-x-y=1

Solution

3 x + 4 y = 2, 7 - x - y = 1

Solution

x = 22, y = - 16

Solution steps

[3 x + 4 y = 2 7 - x - y = 1]

Isolate

x

for

3 x + 4 y = 2 : x = \frac{2 - 4 y}{3}

Substitute

x = \frac{2 - 4 y}{3}

[7 - \frac{2 - 4 y}{3} - y = 1]

Simplify

[\frac{- 2 + y}{3} + 7 = 1]

Isolate

y

for

\frac{- 2 + y}{3} + 7 = 1 : y = - 16

For

x = \frac{2 - 4 y}{3}

Substitute

y = - 16

x = \frac{2 - 4 ( - 16 )}{3}

\frac{2 - 4 ( - 16 )}{3} = 22

x = 22

The solutions to the system of equations are:

x = 22, y = - 16

Popular Examples

2 x - 3 y = 5, 4 x - y = 8

4a+5b=-3,-7b+3a=-13

4 a + 5 b = - 3, - 7 b + 3 a = - 13

2x+3y+z=9,x+2y+3z=6,3x+y+2z=8

2 x + 3 y + z = 9, x + 2 y + 3 z = 6, 3 x + y + 2 z = 8

x + 5 y = 8, 2 x - y = 5

x+2y=12,4y-2x=1

x + 2 y = 12, 4 y - 2 x = 1

Frequently Asked Questions (FAQ)

What is 3x+4y=2,7-x-y=1 ?
The solution to 3x+4y=2,7-x-y=1 is x=22,y=-16