Question

数学题求解解方程.2X0.2x=5.6 8x\6=0.4 3x+5x=4.8 5x\15=15 0.6x=9.6 2、简

Answer 1

1.0.4x=5.6 x=14

2.8x=2.4 x=0.3

3.8x=4.8 x=0.6

4.5x=225 x=45

5.x=1.6

简便计算

=（4/5+1/5)+(4/3+5/3)=1+3=4

=(1.25*8)*(5*0.2)=10*1=10