Question

-3x-3y=15 -9x+6y=15 solve for elimination

Answer 1

Step-by-step explanation:

$3x + 3y + 15 = 0 \: \: \: \: \: \: \: 9x - 6y + 15 = 0 \\ multiply \: first \ \: equation \: with \: 2 \: to \: cancel \: the \: y \: term.$

6x + 6y + 30 = 0

9x - 6y + 15 =0

——————————

15x + 45 = 0

——————————–

x = -45/15

x = -3

Substitute x in equation one or two

3x + 3y +15=0

3(x +y +5)=0

x + y + 5 =0

-3 + y +5 =0

y +2=0

y = -2

So the solution found after elimination is (-3 , -2)

Hope this answer is helpful to you please mark my answer as brainlist if you are satisfied

Thank you

Answer 2

Answer:

Given equation is

-3x-3y=15........(1)

-9x+6y=15.......(2)

Equation (1) multiple by 3

-9x-9y=45

-9x+6y=15

-15y=30

y=30/-15 ans

I hope I help u

thanks have a nice day

And plz follow me