方程7.8x+2.4x=1.

问题描述:

方程7.8x+2.4x=1.

(7.8+2.4)X=1.08
10.2X=1.08
X=1.08/10.2
X=0.11

10.2x=1.08
x=1.08*10.2
x=0.106

7.8x+2.4x=1.08
(7.8+2.4)x=1.08
10.2x=1.08
x=1.08÷10.2
x=108/1020
x=9/85