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Popular >

8x+2y=7,3x-4y=5

Solution

8 x + 2 y = 7, 3 x - 4 y = 5

Solution

x = 1, y = - \frac{1}{2}

Solution steps

[8 x + 2 y = 7 3 x - 4 y = 5]

Isolate

x

for

8 x + 2 y = 7 : x = \frac{7 - 2 y}{8}

Substitute

x = \frac{7 - 2 y}{8}

[3 \cdot \frac{7 - 2 y}{8} - 4 y = 5]

Simplify

[\frac{21 - 38 y}{8} = 5]

Isolate

y

for

\frac{21 - 38 y}{8} = 5 : y = - \frac{1}{2}

For

x = \frac{7 - 2 y}{8}

Substitute

y = - \frac{1}{2}

x = \frac{7 - 2 ( - \frac{1}{2} )}{8}

\frac{7 - 2 ( - \frac{1}{2} )}{8} = 1

x = 1

The solutions to the system of equations are:

x = 1, y = - \frac{1}{2}

Popular Examples

-8x+3y=-15,7y-2x=12

- 8 x + 3 y = - 15, 7 y - 2 x = 12

x-2y=52,11x+15y=-20

x - 2 y = 52, 11 x + 15 y = - 20

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

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

x + y = 9, 2 x - y = 12

Frequently Asked Questions (FAQ)

What is 8x+2y=7,3x-4y=5 ?
The solution to 8x+2y=7,3x-4y=5 is x=1,y=-1/2