What is 15x-11y=-87,-12x-5y=-27 ?

The solution to 15x-11y=-87,-12x-5y=-27 is x=-2/3 ,y=7

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15x-11y=-87,-12x-5y=-27

15 x - 11 y = - 87, - 12 x - 5 y = - 27

x = - \frac{2}{3}, y = 7

Solution steps

[15 x - 11 y = - 87 - 12 x - 5 y = - 27]

Isolate

x

for

15 x - 11 y = - 87 : x = \frac{- 87 + 11 y}{15}

Substitute

x = \frac{- 87 + 11 y}{15}

[- 12 \cdot \frac{- 87 + 11 y}{15} - 5 y = - 27]

Simplify

[\frac{- 69 y + 348}{5} = - 27]

Isolate

y

for

\frac{- 69 y + 348}{5} = - 27 : y = 7

For

x = \frac{- 87 + 11 y}{15}

Substitute

y = 7

x = \frac{- 87 + 11 \cdot 7}{15}

\frac{- 87 + 11 \cdot 7}{15} = - \frac{2}{3}

x = - \frac{2}{3}

The solutions to the system of equations are:

x = - \frac{2}{3}, y = 7

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

8 er = 4, a^{25} = 23

(k - 1) x + 3 y = 7, (k + 1) x + 6 y = 5 k - 1

x + y = 6, 3 x - y = 14

x + 2 y = 2, 6 x = 7 - y

What is 15x-11y=-87,-12x-5y=-27 ?
The solution to 15x-11y=-87,-12x-5y=-27 is x=-2/3 ,y=7