Can someone walk through this???
1. ((3(x-6)/5) = ((4(x+2)/8)
I Really Need Some Help PLZ On Math Problem!?
2009-01-20 2:54 pm
回答 (5)
2009-01-20 3:06 pm
✔ 最佳答案
1. 3(x-6)/5= 4(x+2)/83(x-6)/5=(x+2)/2
6(x-6)=5(x+2)
6x-36=5x+10
6x-5x=10+36
x=46 answer//
2009-01-20 3:31 pm
3[(x - 6)/5] = 4[(x + 2)/8]
(3*x - 3*6)/5 = (4*x + 4*2)/8
(3x - 18)/5 = (4x + 8)/8
3x - 18 = 5(4x + 8)/8
8(3x - 18) = 5*4x + 5*8
24x - 144 = 20x + 40
24x - 20x = 144 + 40
4x = 184
x = 184/4
x = 46
(3*x - 3*6)/5 = (4*x + 4*2)/8
(3x - 18)/5 = (4x + 8)/8
3x - 18 = 5(4x + 8)/8
8(3x - 18) = 5*4x + 5*8
24x - 144 = 20x + 40
24x - 20x = 144 + 40
4x = 184
x = 184/4
x = 46
2009-01-20 3:03 pm
3[(x - 6)/5] = 4[(x + 2)/8]
(3*x - 3*6)/5 = (4*x + 4*2)/8
(3x - 18)/5 = (4x + 8)/8
3x - 18 = 5(4x + 8)/8
8(3x - 18) = 5*4x + 5*8
24x - 144 = 20x + 40
24x - 20x = 144 + 40
4x = 184
x = 184/4
x = 46
(3*x - 3*6)/5 = (4*x + 4*2)/8
(3x - 18)/5 = (4x + 8)/8
3x - 18 = 5(4x + 8)/8
8(3x - 18) = 5*4x + 5*8
24x - 144 = 20x + 40
24x - 20x = 144 + 40
4x = 184
x = 184/4
x = 46
2009-01-20 3:02 pm
8(3x-18) = 5(4x+8)
24x-144 = 20x+40
12x-72 = 10x+20
2x = 92
x = 46
24x-144 = 20x+40
12x-72 = 10x+20
2x = 92
x = 46
2009-01-20 3:00 pm
3(x-5)/5 = 4(x+2)/8
Cross multiply getting:
20(x+2) = 24(x-5)
20x+40 = 24x -120
40 +120 = 24x -20x
160 = 4x
40 = x
Cross multiply getting:
20(x+2) = 24(x-5)
20x+40 = 24x -120
40 +120 = 24x -20x
160 = 4x
40 = x
收錄日期: 2021-05-01 11:54:06
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