Question

-10x - y=5
-9x + 2y=-10

Answer 1

`x=0\\y=-5`

Explanation:

Im going to solve by substitution so I will isolate y on one side with the first equation

`-10x-y=5`

Add y on both sides

`-10x=5+y`

Subtract 5 on both sides

`-10x-5=y`

Now we fill in y in the second equation

`-9x+2(-10x-5)=-10\\-9x-20x-10=-10\\-29x-10=-10`

Add 10 on both sides

`-29x=0`

Divide both sides by - 29

`x=0`

Now that we know x we fill in that to find y and I will use the first equation

`-10(0)-y=5\\-y=5`

Divide both sides by -1

`y=-5`

Hope this helps please let know if you have any further questions