SIMPLIFY: 2+3x10/5x3-9=???

Does the "x" stand for an unknown or indicate multiplication? Online, "*" is used for multiplication to avoid this confusion. Use of parentheses would clarify your equation.

(2+3)(10/5)(3-9) = 5 * 2 * -6 = -60

Since your equation is unclear, I don't know how you got 11.