y = -x – 4 y = 3x

Answer 1

You can write two equations here. y = -x-4y and y = 3x. Substitute 3x in for y in the first equation.

So, (3x) = -x - 4(3x)

Solve for x:

3x = -x - 12x

3x = -13x

16x = 0

x = 0

Plug 0 in for x in the equation y = 3x

y = 3(0)

y = 0

Thus the solution is x=0, y=0