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Popular >

3x+4y=-7,-3x-8y=-1

Solution

3 x + 4 y = - 7, - 3 x - 8 y = - 1

Solution

x = - 5, y = 2

Solution steps

[3 x + 4 y = - 7 - 3 x - 8 y = - 1]

Isolate

x

for

3 x + 4 y = - 7 : x = \frac{- 7 - 4 y}{3}

Substitute

x = \frac{- 7 - 4 y}{3}

[- 3 \cdot \frac{- 7 - 4 y}{3} - 8 y = - 1]

Simplify

[7 - 4 y = - 1]

Isolate

y

for

7 - 4 y = - 1 : y = 2

For

x = \frac{- 7 - 4 y}{3}

Substitute

y = 2

x = \frac{- 7 - 4 \cdot 2}{3}

\frac{- 7 - 4 \cdot 2}{3} = - 5

x = - 5

The solutions to the system of equations are:

x = - 5, y = 2

Popular Examples

4x-y=20,7x+2y=18

4 x - y = 20, 7 x + 2 y = 18

x-2y=3,x+4y-20=0

x - 2 y = 3, x + 4 y - 20 = 0

1/7 x+1/6 y=3, 1/2 x+1/3 y=2

\frac{1}{7} x + \frac{1}{6} y = 3, \frac{1}{2} x + \frac{1}{3} y = 2

x+y=-4,-x+2y=13

x + y = - 4, - x + 2 y = 13

x - y = 28, x - 3 y = 10

Frequently Asked Questions (FAQ)

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