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Popular >

4x+5y=-9,3x+4y=-8

Solution

4 x + 5 y = - 9, 3 x + 4 y = - 8

Solution

x = 4, y = - 5

Solution steps

[4 x + 5 y = - 9 3 x + 4 y = - 8]

Isolate

x

for

4 x + 5 y = - 9 : x = \frac{- 9 - 5 y}{4}

Substitute

x = \frac{- 9 - 5 y}{4}

[3 \cdot \frac{- 9 - 5 y}{4} + 4 y = - 8]

Simplify

[\frac{- 27 + y}{4} = - 8]

Isolate

y

for

\frac{- 27 + y}{4} = - 8 : y = - 5

For

x = \frac{- 9 - 5 y}{4}

Substitute

y = - 5

x = \frac{- 9 - 5 ( - 5 )}{4}

\frac{- 9 - 5 ( - 5 )}{4} = 4

x = 4

The solutions to the system of equations are:

x = 4, y = - 5

Popular Examples

x + y = 1, 1 x - y = 3

-2x+5y=13,16x+3y=25

- 2 x + 5 y = 13, 16 x + 3 y = 25

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

5 x - y = 6, x + 3 y = 10

x+6y=27,7x-3y=9

x + 6 y = 27, 7 x - 3 y = 9

Frequently Asked Questions (FAQ)

What is 4x+5y=-9,3x+4y=-8 ?
The solution to 4x+5y=-9,3x+4y=-8 is x=4,y=-5