(7-x)*1+1.5x=9怎么解
问题描述:
(7-x)*1+1.5x=9怎么解
答
去括号:7-X+1.5X=9
移向:0.5X=2
X=4
(7-x)*1+1.5x=9怎么解
去括号:7-X+1.5X=9
移向:0.5X=2
X=4