8道初一解方程题(1)1/4x-1/2=3/4(2)7x-5/4=3/8(3)2x-1/6=5x+1/8(4)1/2x-7=9x-2/6(5)1/5x-1/2(3-2x)=1(6)2x+1/3-5x-1/6+1(7)1/7(2x+14)4-2x(8)3/10(200+x)-2/10(300-x)=300乘9/25请把过程列出来、谢谢哈
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![8道初一解方程题(1)1/4x-1/2=3/4(2)7x-5/4=3/8(3)2x-1/6=5x+1/8(4)1/2x-7=9x-2/6(5)1/5x-1/2(3-2x)=1(6)2x+1/3-5x-1/6+1(7)1/7(2x+14)4-2x(8)3/10(200+x)-2/10(300-x)=300乘9/25请把过程列出来、谢谢哈](/uploads/image/z/579391-7-1.jpg?t=8%E9%81%93%E5%88%9D%E4%B8%80%E8%A7%A3%E6%96%B9%E7%A8%8B%E9%A2%98%281%291%2F4x-1%2F2%3D3%2F4%282%297x-5%2F4%3D3%2F8%283%292x-1%2F6%3D5x%2B1%2F8%284%291%2F2x-7%3D9x-2%2F6%285%291%2F5x-1%2F2%283-2x%29%3D1%286%292x%2B1%2F3-5x-1%2F6%2B1%287%291%2F7%282x%2B14%294-2x%288%293%2F10%28200%2Bx%29-2%2F10%28300-x%29%3D300%E4%B9%989%2F25%E8%AF%B7%E6%8A%8A%E8%BF%87%E7%A8%8B%E5%88%97%E5%87%BA%E6%9D%A5%E3%80%81%E8%B0%A2%E8%B0%A2%E5%93%88)
8道初一解方程题(1)1/4x-1/2=3/4(2)7x-5/4=3/8(3)2x-1/6=5x+1/8(4)1/2x-7=9x-2/6(5)1/5x-1/2(3-2x)=1(6)2x+1/3-5x-1/6+1(7)1/7(2x+14)4-2x(8)3/10(200+x)-2/10(300-x)=300乘9/25请把过程列出来、谢谢哈
8道初一解方程题
(1)1/4x-1/2=3/4
(2)7x-5/4=3/8
(3)2x-1/6=5x+1/8
(4)1/2x-7=9x-2/6
(5)1/5x-1/2(3-2x)=1
(6)2x+1/3-5x-1/6+1
(7)1/7(2x+14)4-2x
(8)3/10(200+x)-2/10(300-x)=300乘9/25
请把过程列出来、谢谢哈
8道初一解方程题(1)1/4x-1/2=3/4(2)7x-5/4=3/8(3)2x-1/6=5x+1/8(4)1/2x-7=9x-2/6(5)1/5x-1/2(3-2x)=1(6)2x+1/3-5x-1/6+1(7)1/7(2x+14)4-2x(8)3/10(200+x)-2/10(300-x)=300乘9/25请把过程列出来、谢谢哈
1/4x=3/4+1/2
=3/4+2/4
=5/4
所以x=5
7x=3/8+5/4
=3/8+10/8
=13/8
x=13/56
2x-5x=1/8+1/6
-3x=3/24+4/24
-3x=7/24
x=-7/72
1/2x-9x=7-2/6
-17/2x =20/3
-51x=40
x=-40/51
1/5x-3/2+x=1
6/5x=5/2
6x=25/2
12x=25
x=25/12
2x-5x+1/3+1-1/6=-3x+4/3-1/6=-3x+7/6
(2/7x+2)4-2x=8/7x+8-2x=-6/7x+8
60+3/10x-60+2/10x=108
1/2x=108
x=216
1 1/4x=1/2+3/4
1/4x=5/4
x=5
2 7x=3/8+5/4
x=13/56
3 2x-5x=1/8+1/6
-3x=7/24
x=-7/72
4 1/2x-9x=-1/3+7
...
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1 1/4x=1/2+3/4
1/4x=5/4
x=5
2 7x=3/8+5/4
x=13/56
3 2x-5x=1/8+1/6
-3x=7/24
x=-7/72
4 1/2x-9x=-1/3+7
-17/2x=20/3
x=-40/51
5 1/5x-3/2+x=1
6/5x=5/2
x=25/12
不知道对不对,后面几个式子看不懂
收起