解方程y+2y=45 6x-x=125 3y-6=48 x-360=312 m÷0.6=4.5
问题描述:
解方程y+2y=45 6x-x=125 3y-6=48 x-360=312 m÷0.6=4.5
答
3Y=45 ===> Y=15
5X=125 ====> x=25
3Y=48+6 ===> 3Y=54 ===> Y=18
X=312+360 ====> X=672
m=4.5*0.6 ===> m=2.7