4.8X-(4X-3)=48 36×(2X-3.6)=72解方程
问题描述:
4.8X-(4X-3)=48 36×(2X-3.6)=72解方程
答
4.8X-(4X-3)=48
4.8X-4X+3=48
0.8X=48-3
0.8X=45
x=56.25
36×(2X-3.6)=72
2x-3.6=2
2x=2+3.6
2x=5.6
x=2.8