2.5x+5分之X等于40.5怎么解
问题描述:
2.5x+5分之X等于40.5怎么解
答
2.5x+5分之X等于40.5
等同2.5x+0.2x=40.5
即2.7x=40.5
x=15
答
2.5X+X/5=40.5
5/2X+X/5=40.5
(25/10+2/10)X=40.5
27/10X=81/2
X=81/2÷27/10
X=15
答
2.5x+5分之X等于40.5
2.5x+0.2x=40.5
2.7x=40.5
x= 15
答
2.5x+5分之X=40.5
2.5x+0.2x=40.5
2.7x=40.5
x=40.5÷2.7
x=15