There are infinitely many solutions, for example, x=-7 and y=5, because -7+5=-2
y = x + 2 y = -x + 4x + 2 = -x + 42x + 2 = 42x = 2x = 1y = x + 2y = 1 + 2y = 3(1, 3)
in order to solve this problem you have to solve for x first wich you are given the data to pre forme so x=4 and x.2=8 and 8=y and y-4=4=a=x so a+8=12 and 12=b
y = 0 x = y + 2 plug 0 in for y x = 0 + 2 x = 2
They can be but need not be.