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Popular >

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

Solution

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

Solution

x = 2, y = 5

Solution steps

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

Isolate

x

for

7 x - 2 y = 4 : x = \frac{4 + 2 y}{7}

Substitute

x = \frac{4 + 2 y}{7}

[2 \cdot \frac{4 + 2 y}{7} + y = 9]

Simplify

[\frac{8 + 11 y}{7} = 9]

Isolate

y

for

\frac{8 + 11 y}{7} = 9 : y = 5

For

x = \frac{4 + 2 y}{7}

Substitute

y = 5

x = \frac{4 + 2 \cdot 5}{7}

\frac{4 + 2 \cdot 5}{7} = 2

x = 2

The solutions to the system of equations are:

x = 2, y = 5

Popular Examples

152x-378y=-74,-378x+152y=-604

152 x - 378 y = - 74, - 378 x + 152 y = - 604

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

2x-3y=9,2x+y=13

2 x - 3 y = 9, 2 x + y = 13

2x+3y=-1,3x+4y=0

2 x + 3 y = - 1, 3 x + 4 y = 0

3x-2y=-3,6x+2y=12

3 x - 2 y = - 3, 6 x + 2 y = 12

Frequently Asked Questions (FAQ)

What is 7x-2y=4,2x+y=9 ?
The solution to 7x-2y=4,2x+y=9 is x=2,y=5