(8+22)×=99 解方程

问题描述:

(8+22)×=99 解方程

(8+22)X=99
8x+22x=99
30x=99
x=3.3

(8+22)x=99
30x=99
x=99/30=33/10

(8+22)X=99
8X+22X=99
30X=99
X=99/30
X=3.3