Question

5x+3y = -9 3x-5y=-9.....how do i solve this using elimination?

Answer 1

5x+3y = -9
=> x = ( -9-3y/5
Putting this value of x in equation 3x -5y=-9 you will get the value of y .

Answer 2

im still confused,can you explain a little more

Answer 3

Multiply 1st equation by 3 and the other by 5, we get,
\[15x + 9y = -27\]
\[15x - 25y = -45\]

Then Subtract one and second equation:

\[34y = 18\]
And y = \[18/34 = 9/17\]

And therefore x = \[-36/17\]..
Now understood??

Answer 4

sorry that was substitution and not elimination method

Answer 5

i fully understand it now! thanks

Answer 6

No thanks, just knowledge...
And you know what,
If you have knowledge, Let others light their candle on it...