What is -9x-((9y))/7 =15,-3x+2/9*y=7 ?

The solution to -9x-((9y))/7 =15,-3x+2/9*y=7 is x=-259/123 ,y= 126/41

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-9x-((9y))/7 =15,-3x+2/9*y=7

- 9 x - \frac{( 9 y )}{7} = 15, - 3 x + \frac{2}{9} \cdot y = 7

x = - \frac{259}{123}, y = \frac{126}{41}

Solution steps

[- 9 x - \frac{( 9 y )}{7} = 15 - 3 x + \frac{2}{9} y = 7]

Isolate

x

for

- 9 x - \frac{( 9 y )}{7} = 15 : x = - \frac{35 + 3 y}{21}

Substitute

x = - \frac{35 + 3 y}{21}

[- 3 (- \frac{35 + 3 y}{21}) + \frac{2}{9} y = 7]

Simplify

[\frac{315 + 41 y}{63} = 7]

Isolate

y

for

\frac{315 + 41 y}{63} = 7 : y = \frac{126}{41}

For

x = - \frac{35 + 3 y}{21}

Substitute

y = \frac{126}{41}

x = - \frac{35 + 3 \cdot \frac{126}{41}}{21}

- \frac{35 + 3 \cdot \frac{126}{41}}{21} = - \frac{259}{123}

x = - \frac{259}{123}

The solutions to the system of equations are:

x = - \frac{259}{123}, y = \frac{126}{41}

3 (x + y) = 2, x - 1 x + y = - 5

y - 4 x = 1, 6 x - 5 y = 9

6 x + 2 y = 10, 10 x - 3 y = 12

4 x + 5 y = 10, 5 x + 4 y = 20

2 x + 3 y = 1, 5 x + 4 y = 6

What is -9x-((9y))/7 =15,-3x+2/9*y=7 ?
The solution to -9x-((9y))/7 =15,-3x+2/9*y=7 is x=-259/123 ,y= 126/41