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Popular >

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

Solution

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

Solution

x = 2, y = - 1

Solution steps

[5 x + y = 9 x - 2 y = 4]

Isolate

x

for

5 x + y = 9 : x = \frac{9 - y}{5}

Substitute

x = \frac{9 - y}{5}

[\frac{9 - y}{5} - 2 y = 4]

Simplify

[\frac{9 - 11 y}{5} = 4]

Isolate

y

for

\frac{9 - 11 y}{5} = 4 : y = - 1

For

x = \frac{9 - y}{5}

Substitute

y = - 1

x = \frac{9 - ( - 1 )}{5}

\frac{9 - ( - 1 )}{5} = 2

x = 2

The solutions to the system of equations are:

x = 2, y = - 1

Popular Examples

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

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

2 x - y = 3, 3 x + 2 y = 8

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

5x-2y=2,-x-2y=-10

5 x - 2 y = 2, - x - 2 y = - 10

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

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

Frequently Asked Questions (FAQ)

What is 5x+y=9,x-2y=4 ?
The solution to 5x+y=9,x-2y=4 is x=2,y=-1