计算(能简便,就简便)求详细
(180.1+2.5*3.3)/(7.7-2.7)5.95*101-5.950.21*67.5+31.5*0.21+0.2115.8/2.52.59-0.3x=0.614...
(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 展开
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 展开
1个回答
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(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
=(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
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