Question

Solve
-2x-y=1
y=3x-1

Answer 1

x=-2/5

y=-1/5

Explanation:

`-2x-y=1\\y=3x-1`

Get the y variables onto 1 side

`y+1=-2x\\y=3x-1`

Now shift the 1 over

`y=-2x-1\\y=3x-1`

To solve for x, we can subtract the second equation from the first equation

`(y-y)=-2x-3x-1-1 = 0=-5x-2\\5x=-2\\x=-2/5`

Plug back into the first equation we found and solve for y

`y=-2x-1\\y=-2(-2/5)-1\\y=4/5-1=-1/5`