Question

How many solutions are there to the equations: x+2y=-2 y=1/2x-5

Answer 1

Explanation:

x+2y=-2

2y=-x-2

y=-x/2-2/2

y=-x/2-------(1)

y=1/2x-5-----(2)

(1)=(2)

-x/2=1/2x-5

-x=x-10

-2x=-10

x=5

substitute in 2

y=(1/2)*5-5

=5/2-5

=-2.5