题目:解方程① 3(x 4) 2x = 15 ② 5(y - 3) - 2(y 2) = 1 题目:解方程① 3(x 4) 2x = 15 ② 5(y - 3) - 2(y 2) = 1 发布时间:2025-05-29 14:42:33