What is 5x-21=8y,-5y+10x=15 ?

The solution to 5x-21=8y,-5y+10x=15 is x= 3/11 ,y=-27/11

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5x-21=8y,-5y+10x=15

5 x - 21 = 8 y, - 5 y + 10 x = 15

x = \frac{3}{11}, y = - \frac{27}{11}

Solution steps

[5 x - 21 = 8 y - 5 y + 10 x = 15]

Isolate

x

for

5 x - 21 = 8 y : x = \frac{8 y + 21}{5}

Substitute

x = \frac{8 y + 21}{5}

[- 5 y + 10 \cdot \frac{8 y + 21}{5} = 15]

Simplify

[11 y + 42 = 15]

Isolate

y

for

11 y + 42 = 15 : y = - \frac{27}{11}

For

x = \frac{8 y + 21}{5}

Substitute

y = - \frac{27}{11}

x = \frac{8 ( - \frac{27}{11} ) + 21}{5}

\frac{8 ( - \frac{27}{11} ) + 21}{5} = \frac{3}{11}

x = \frac{3}{11}

The solutions to the system of equations are:

x = \frac{3}{11}, y = - \frac{27}{11}

x - 5 y = 11, 2 x + 34 = 0

16 x - 49 y = 25, 2 x - 33 y = 12

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

- 3 x + 2 y = - 11, - x + 3 y = 0

m + 11 m = 4, - 5 m - 3 n = 10

What is 5x-21=8y,-5y+10x=15 ?
The solution to 5x-21=8y,-5y+10x=15 is x= 3/11 ,y=-27/11