1. **State the problem:** Simplify the expression $120+(14\times 2)-17-(21\div 7)\times 4-8$. 2. **Calculate each operation step-by-step:** - Multiply $14 \times 2 = 28$. - Divide $21 \div 7 = 3$. - Multiply the division result by 4: $3 \times 4 = 12$. 3. **Substitute these values back into the expression:** $$120 + 28 - 17 - 12 - 8$$ 4. **Perform the additions and subtractions from left to right:** - $120 + 28 = 148$ - $148 - 17 = 131$ - $131 - 12 = 119$ - $119 - 8 = 111$ 5. **Final answer:** $$111$$