plug it in
y = 2/3(24 - -10/3) + 5(-10/3)y
y = 2/3 (82/3) + 5(-10/3)y
y = 164/9 - 50/3y
because there are “y” values on both sides, they cancel out, leaving a number to equal another number. this does not make any sense. therefore, there is no solution to this equation when x = -10/3.