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Popular >

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

Solution

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

Solution

x = \frac{11}{7}, y = - \frac{19}{7}

Solution steps

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

Isolate

x

for

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

Substitute

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

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

Simplify

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

Isolate

y

for

\frac{2 - 7 y}{3} = 7 : y = - \frac{19}{7}

For

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

Substitute

y = - \frac{19}{7}

x = \frac{2 - ( - \frac{19}{7} )}{3}

\frac{2 - ( - \frac{19}{7} )}{3} = \frac{11}{7}

x = \frac{11}{7}

The solutions to the system of equations are:

x = \frac{11}{7}, y = - \frac{19}{7}

Popular Examples

5x-2=3,x+15x-2=3x+1

5 x - 2 = 3, x + 15 x - 2 = 3 x + 1

9x+8y=6,5x+6y=-6

9 x + 8 y = 6, 5 x + 6 y = - 6

y=2x-19,2x-3y+3=0

y = 2 x - 19, 2 x - 3 y + 3 = 0

x+y+8=5,x+y=3x-y

x + y + 8 = 5, x + y = 3 x - y

2x+6y=34,3x+4y=30

2 x + 6 y = 34, 3 x + 4 y = 30

Frequently Asked Questions (FAQ)

What is 3x+y=2,x-2y=7 ?
The solution to 3x+y=2,x-2y=7 is x= 11/7 ,y=-19/7