解方程:x-1/5x=32 1/3x+1/4x=7/15 (8/9-5/12)x=34
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解方程:x-1/5x=32 1/3x+1/4x=7/15 (8/9-5/12)x=34
我上面写的是3道x-1/5x=32 1/3x+1/4x=7/15 (8/9-5/12)x=34
我上面写的是3道x-1/5x=32 1/3x+1/4x=7/15 (8/9-5/12)x=34
![解方程:x-1/5x=32 1/3x+1/4x=7/15 (8/9-5/12)x=34](/uploads/image/z/6565364-44-4.jpg?t=%E8%A7%A3%E6%96%B9%E7%A8%8B%EF%BC%9Ax-1%2F5x%3D32+1%2F3x%2B1%2F4x%3D7%2F15+%288%2F9-5%2F12%29x%3D34)
(1)x-1/5x=32
:(1-1/5)x=32
4/5x=32
x=40
(2) 1/3x+1/4x=7/15
( 1/3+1/4)x=7/15
7/12 x=7/15
x=4/5
(3)(8/9-5/12)x=34
17/36 x=34
x=72
:(1-1/5)x=32
4/5x=32
x=40
(2) 1/3x+1/4x=7/15
( 1/3+1/4)x=7/15
7/12 x=7/15
x=4/5
(3)(8/9-5/12)x=34
17/36 x=34
x=72
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解方程:x-1/5x=32 1/3x+1/4x=7/15 (8/9-5/12)x=34
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