方程:①6.74-5.4X=0.37+4.6X ②3/8÷X=1/20÷0.6

问题描述:

方程:①6.74-5.4X=0.37+4.6X ②3/8÷X=1/20÷0.6

:①6.74-5.4X=0.37+4.6X
6.74+0.37=5.4x+4.6x
10x=7.11
x=0.711
②3/8÷X=1/20÷0.6
3/8×0.6=1/20×x 两边都乘以40
9=2x
x=9/2