(1-30%)x=6.3 怎么解如题
问题描述:
(1-30%)x=6.3 怎么解如题
答
(1-30%)x=0.7x 0.7x=6.3得 x=6.3/0.7=9
答
70%x=6.3 0.7x=6.3 x=9
(1-30%)x=6.3 怎么解如题
(1-30%)x=0.7x 0.7x=6.3得 x=6.3/0.7=9
70%x=6.3 0.7x=6.3 x=9