What is -10x-5y=2,1x-7y=28 ?

The solution to -10x-5y=2,1x-7y=28 is x= 42/25 ,y=-94/25

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-10x-5y=2,1x-7y=28

- 10 x - 5 y = 2, 1 x - 7 y = 28

x = \frac{42}{25}, y = - \frac{94}{25}

Solution steps

[- 10 x - 5 y = 2 1 \cdot x - 7 y = 28]

Isolate

x

for

- 10 x - 5 y = 2 : x = - \frac{2 + 5 y}{10}

Substitute

x = - \frac{2 + 5 y}{10}

[1 \cdot (- \frac{2 + 5 y}{10}) - 7 y = 28]

Simplify

[\frac{- 2 - 75 y}{10} = 28]

Isolate

y

for

\frac{- 2 - 75 y}{10} = 28 : y = - \frac{94}{25}

For

x = - \frac{2 + 5 y}{10}

Substitute

y = - \frac{94}{25}

x = - \frac{2 + 5 ( - \frac{94}{25} )}{10}

- \frac{2 + 5 ( - \frac{94}{25} )}{10} = \frac{42}{25}

x = \frac{42}{25}

The solutions to the system of equations are:

x = \frac{42}{25}, y = - \frac{94}{25}

3 a + 5 b = 2, 6 a + 5 b = 22

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

x - 3 y - 3 = 3, x - 9 y - 2 = 0

2 x + y = - 10, x - 3 y = 2

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

What is -10x-5y=2,1x-7y=28 ?
The solution to -10x-5y=2,1x-7y=28 is x= 42/25 ,y=-94/25