You can put this solution on YOUR website! x-2y=3 and y=-x-1.5
you are asked to find the solution when x = -3,0 and 2
so lets take first case of x = -3
simply substitute the value of x in the equations
x - 2y = 3
-3 - 2y = 3
2y = -6
y = -3
so when x = -3 y = -3 (in the case of first equation)
y = -x - 1.5
y = -(-3)-1.5
y = 3- 1.5 = 1.5
so when x = -3 , y = -1.5 (in the case of second equation)
So by following the same procedure try to find the solutions by substituting the given values of x in each equation