简便算法:1/8x58+1/8x41+1/8 5/9-0.375+11/18-5/8 解放程:0.6*(3.5-x)=1.2 5x-3*7/10=7/5
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![简便算法:1/8x58+1/8x41+1/8 5/9-0.375+11/18-5/8 解放程:0.6*(3.5-x)=1.2 5x-3*7/10=7/5](/uploads/image/z/753150-30-0.jpg?t=%E7%AE%80%E4%BE%BF%E7%AE%97%E6%B3%95%EF%BC%9A1%2F8x58%2B1%2F8x41%2B1%2F8+5%2F9-0.375%2B11%2F18-5%2F8+%E8%A7%A3%E6%94%BE%E7%A8%8B%EF%BC%9A0.6%2A%EF%BC%883.5-x%EF%BC%89%3D1.2+5x-3%2A7%2F10%3D7%2F5)
简便算法:1/8x58+1/8x41+1/8 5/9-0.375+11/18-5/8 解放程:0.6*(3.5-x)=1.2 5x-3*7/10=7/5
简便算法:1/8x58+1/8x41+1/8 5/9-0.375+11/18-5/8
解放程:0.6*(3.5-x)=1.2 5x-3*7/10=7/5
简便算法:1/8x58+1/8x41+1/8 5/9-0.375+11/18-5/8 解放程:0.6*(3.5-x)=1.2 5x-3*7/10=7/5
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简便算法
1/8x58+1/8x41+1/8
=1/8×(58+41+1)
=1/8×100
=12.5
5/9-0.375+11/18-5/8
=(5/9+11/18)-(0.375+5/8)
=7/6-1
=1/6
解方程
0.6*(3.5-x)=1.2
3.5-x=2
x=3.5-2
x=1.5
5x-3*7/10=7/5
5x-2.1=1.4
5x=3.5
x=0.7
1/8x58+1/8x41+1/8
=1/8*(58+41+1)=12.5
5/9-0.375+11/18-5/8
=(5/9+11/18)-(0.375+8/5)
=(10/18+11/18)-(3/8+8/5)
=1/6
0.6*(3.5-x)=1.2
3.5-x=2
x=1.5
5x-3*7/10=7/5
5x=7/5+21/10
x=7/10
1/8x58+1/8x41+1/8=1/8*(58+41+1)=1/8*100=12.5
5/9-0.375+11/18-5/8 =(10/18+11/18)-(3/8+5/8)=19/18-1=1/18
0.6*(3.5-x)=1.2
x=3.5-12/0.6=3.5-2=1.5
5x-3*7/10=7/5
x=(21/10+7/5)/5=0.7
(1)原式=1/8*(58+41+1)=1/8*100=25/2=22.5
(2)原式=5/9-3/8+11/18-5/8=10/18+11/18-3/8-5/8=21/18-8/8=3/18=1/6
(3)3.5-X=2 X=1.5
(4)5X=7/5+21/10 5X=14/10+21/10 5X=35/10 X=0.7