Can x=3 be a solution to a system of inequalities?
Yes, because the solution to 5x-10>0 is x>2 and x=3 satisfies this; it is a solution, but not the ONLY solution.
There are systems in which the ONLY solution is x =3:
3x – 9 > 0 and 2x – 6 < 0.
Students convolute inequalities and equations. It can cause trouble to think and equation is a solution to a system of inequalities. They fail to consider ALL solutions rather than just a solution.