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Popular >

x=5y+8,-7x+8y=25

Solution

x = 5 y + 8, - 7 x + 8 y = 25

Solution

x = - 7, y = - 3

Solution steps

[x = 5 y + 8 - 7 x + 8 y = 25]

Substitute

x = 5 y + 8

[- 7 (5 y + 8) + 8 y = 25]

Simplify

[- 27 y - 56 = 25]

Isolate

y

for

- 27 y - 56 = 25 : y = - 3

For

x = 5 y + 8

Substitute

y = - 3

x = 5 (- 3) + 8

5 (- 3) + 8 = - 7

x = - 7

The solutions to the system of equations are:

x = - 7, y = - 3

Popular Examples

5x+6y=12,3x+5y=21

5 x + 6 y = 12, 3 x + 5 y = 21

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

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

2/x+3/y = 9/((xy)), 4/x+9/y =(21)/((xy))

\frac{2}{x} + \frac{3}{y} = \frac{9}{( x y )}, \frac{4}{x} + \frac{9}{y} = \frac{21}{( x y )}

5x+2y=2,2-2x+6y=3

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

2 x - y = - 1, x - y = - 2

Frequently Asked Questions (FAQ)

What is x=5y+8,-7x+8y=25 ?
The solution to x=5y+8,-7x+8y=25 is x=-7,y=-3