7. Xiaoming mistakenly calculated addition as subtraction, getting a result of 86, which is 186 less than the correct answer. The larger of the original addends is $(\quad)$.
【Answer】 179
【Analysis】Mistaking addition for subtraction, the result is 186 less, which means it is short of twice the second addend. The second addend is $186 \div 2=93$, and the first addend is $93+86=179$. Therefore, the larger addend is 179;
【Lecture Comparison】Restoration problem & Sum-difference problem, Grade 4 Cup Competition Sprint Short-term Class (hereinafter referred to as "short-term class") Lecture 1.