Question

计算（能简便，就简便）求详细

（180.1+2.5*3.3）/（7.7-2.7）
5.95*101-5.95
0.21*67.5+31.5*0.21+0.21
15.8/2.5
2.59-0.3x=0.61
40.1-x=0.5*(8+12)
8(29-x)/4=12

Answer 1

（180.1+2.5*3.3）/（7.7-2.7）
=（180.1+2.5*3.3）/5
=180.1/5+2.5/2*3.3
=36.02+0.5*3.3
=36.02+1.65
=37.67

5.95*101-5.95
=5.95*（101-1）
=5.95*100
=595

0.21*67.5+31.5*0.21+0.21
=0.21*（67.5+31.5+1）
=0.21*100
=21

15.8/2.5
=15.8*4/（2.5*4）
=63.2/10
=6.32

2.59-0.3x=0.61
0.3x=1.98
x=6.6

40.1-x=0.5*(8+12)
40.1-x=10
x=30.1

8(29-x)/4=12
8(29-x)=48
29-x==16
x=13