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Popular >

4y+3x=8,8x-9y=-77

Solution

4 y + 3 x = 8, 8 x - 9 y = - 77

Solution

x = - 4, y = 5

Solution steps

[4 y + 3 x = 8 8 x - 9 y = - 77]

Isolate

y

for

4 y + 3 x = 8 : y = \frac{8 - 3 x}{4}

Substitute

y = \frac{8 - 3 x}{4}

[8 x - 9 \cdot \frac{8 - 3 x}{4} = - 77]

Simplify

[\frac{- 72 + 59 x}{4} = - 77]

Isolate

x

for

\frac{- 72 + 59 x}{4} = - 77 : x = - 4

For

y = \frac{8 - 3 x}{4}

Substitute

x = - 4

y = \frac{8 - 3 ( - 4 )}{4}

\frac{8 - 3 ( - 4 )}{4} = 5

y = 5

The solutions to the system of equations are:

x = - 4, y = 5

Popular Examples

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

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

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

x + 3 y = 2, 2 x + y = 4

7x+4y=30,3y+2y=14

7 x + 4 y = 30, 3 y + 2 y = 14

7x+9y=42,12x+10y=-4

7 x + 9 y = 42, 12 x + 10 y = - 4

Frequently Asked Questions (FAQ)

What is 4y+3x=8,8x-9y=-77 ?
The solution to 4y+3x=8,8x-9y=-77 is x=-4,y=5