According to the given data we have the following system of equations:
y-5=x.
x=-2-y
In the second equation x=-2-y, so we would substitute the x of the first equation with x=-2-y
Hence, if y-5=x
y-5=-2-y
y+y=-2+5
2y=3
y=3/2
If y=3/2, we would calculate the value of x by substitue in the second equation.
So, x=-2-3/2
x=-3.5
