What is 3x-18y=-54,5x-4y=-40 ?

The solution to 3x-18y=-54,5x-4y=-40 is x=-84/13 ,y= 25/13

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3x-18y=-54,5x-4y=-40

3 x - 18 y = - 54, 5 x - 4 y = - 40

x = - \frac{84}{13}, y = \frac{25}{13}

Solution steps

[3 x - 18 y = - 54 5 x - 4 y = - 40]

Isolate

x

for

3 x - 18 y = - 54 : x = 6 (y - 3)

Substitute

x = 6 (y - 3)

[5 \cdot 6 (y - 3) - 4 y = - 40]

Simplify

[26 y - 90 = - 40]

Isolate

y

for

26 y - 90 = - 40 : y = \frac{25}{13}

For

x = 6 (y - 3)

Substitute

y = \frac{25}{13}

x = 6 (\frac{25}{13} - 3)

6 (\frac{25}{13} - 3) = - \frac{84}{13}

x = - \frac{84}{13}

The solutions to the system of equations are:

x = - \frac{84}{13}, y = \frac{25}{13}

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

x + y = 3, 2 x + 5 y = 15, 2 x + 2 y = - 3

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

2 x - y = 0, y - x = 2

x + 8 y - 3 z = 7, - x + 3 y - 2 z = 1, 3 x + 2 y + z = 5

What is 3x-18y=-54,5x-4y=-40 ?
The solution to 3x-18y=-54,5x-4y=-40 is x=-84/13 ,y= 25/13