For what values of y does the following equation have no solutions for x? xy + 4x + 2y + 8 = 1
xy + 4x + 2y + 8 = 1
x (y+4) + 2y + 8 = 1
x = (-2y -7) / ( y+ 4) you cannot divide by zero.....so when y = -4 there is no solution for x
+37157 
