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Popular >

4x+2y=18,2x-2y=18

Solution

4 x + 2 y = 18, 2 x - 2 y = 18

Solution

x = 6, y = - 3

Solution steps

[4 x + 2 y = 18 2 x - 2 y = 18]

Isolate

x

for

4 x + 2 y = 18 : x = \frac{9 - y}{2}

Substitute

x = \frac{9 - y}{2}

[2 \cdot \frac{9 - y}{2} - 2 y = 18]

Simplify

[9 - 3 y = 18]

Isolate

y

for

9 - 3 y = 18 : y = - 3

For

x = \frac{9 - y}{2}

Substitute

y = - 3

x = \frac{9 - ( - 3 )}{2}

\frac{9 - ( - 3 )}{2} = 6

x = 6

The solutions to the system of equations are:

x = 6, y = - 3

Popular Examples

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

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

4x+3y=1,7x-2y=9

4 x + 3 y = 1, 7 x - 2 y = 9

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

7x-y=5,21x-3y=10

7 x - y = 5, 21 x - 3 y = 10

-x-2y=10,4x+4y=4

- x - 2 y = 10, 4 x + 4 y = 4

Frequently Asked Questions (FAQ)

What is 4x+2y=18,2x-2y=18 ?
The solution to 4x+2y=18,2x-2y=18 is x=6,y=-3