求解答,..

2025-06-28 19:33:11
推荐回答(1个)
回答1:

(1/6)x +(1/12)x +(1/7)x +5 +(1/2)x +4 =x
9 + [(14+7+12+42)/84]x =x
9 + (75/84)x =x
(9/84)x =9
x=84