1/6X+ 1/7X+5+ 1/2X+ 1 1 = X

Transferred articles: X-7/42x+6/42x+21/42 =11+5.

Merge similar projects:

8/42X= 16

Consistency of coefficients:

X=84

So Dipantou lived to be 84 years old.

(2) Because Diophantine lived 84 years, his son lived 84* 1/2=42 years, while Diophantine lived 42+80* 1/6+80* 1/7.

=80 years old

(1) Because he passed 1/6, he passed the following 1/7,84 *1/6+84 *1/7 =14+/kloc-0.

"*" means

"1/6, 1/7, 1/2" stands for one sixth, one seventh and one half.

O(∩_∩)O Haha ~, I wish you study hard and make progress every day!