3/4[(1/2x-1/4)-8]=3/2x+1怎么做?
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3/4[(1/2x-1/4)-8]=3/2x+1怎么做?
3/4[(1/2x-1/4)-8]=3/2x+1怎么做?
3/4[(1/2x-1/4)-8]=3/2x+1怎么做?
3[1/2X-1/4]=6X+4
3/2X-3/4=6X+4
6X-3=24X+16
18X=-19
X=-19/18、
如果题目是:
(3/4) *{[(1/2) x - (1/4)] - 8 } = (3/2)x + 1
则:
3 * [( 2x -1) - 32 ]=24x + 16
6x - 99 = 24x + 16
18x = - 115
x = - 115/18
3/4[1/2x-1/4-32/4]=3/2x+1
3/4[1/2x-33/4]=3/2x+1
3/8x-99/16=3/2x+1
3/8x-99/16=12/8x+1
9/8x=-115/16
x=-115/18
由题意得:3/4[(1/2x-1/4)-8]=3/2x+1
3/4(1/2x-1/4-32/4﹚=3/2x+1
3/4(1/2x-33/4)=3/2x+1
3/8x-99/16=3/2x+1
...
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由题意得:3/4[(1/2x-1/4)-8]=3/2x+1
3/4(1/2x-1/4-32/4﹚=3/2x+1
3/4(1/2x-33/4)=3/2x+1
3/8x-99/16=3/2x+1
3/8x-12/8x=16/16+99/16
-9/8x=115/16
x=-35/6. 望采纳! 相信我!
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去小括号,合并同类项得3/4〔1/2x-33/4〕=3/2x+1
去中括号得3/8x-99/16=3/2x+1
移项得3/8x-3/2x=99/16+1
合并同类项得-9/8x=115/16
两边同除以-9/8得x=-115/18