懂不懂????
2(37.5-x)=48.75-x
............=..............
...........=..................
???????????????????????????????????????????????????????????????
懂不懂這難題?????
2007-02-09 8:55 pm
回答 (5)
2007-02-10 12:30 am
2(37.5-x)=48.75-x
2 * 37.5 - 2 * x = 48.75 - x
75 - 2x = 48.75 -x
75-48.75 = 2x -x
x = 26.25
this is very easy! Hope I can help you!
2 * 37.5 - 2 * x = 48.75 - x
75 - 2x = 48.75 -x
75-48.75 = 2x -x
x = 26.25
this is very easy! Hope I can help you!
2007-02-09 10:08 pm
2(37.5-x)=48.75-x
75-2x=48.75-x
75-48.75=-x+2x
26.25=x
所以 x 就等於 26.25
75-2x=48.75-x
75-48.75=-x+2x
26.25=x
所以 x 就等於 26.25
2007-02-09 9:31 pm
2(37.5-x)=48.75-x
75-2x = 48.75-x
75-48.75 = -x+2x
26.25 = x
x = 26.25
75-2x = 48.75-x
75-48.75 = -x+2x
26.25 = x
x = 26.25
2007-02-09 9:02 pm
2(37.5-x)=48.75-x
75-2x = 48.75-x
75-48.75 = -x+2x
26.25 = x
x = 26.25
75-2x = 48.75-x
75-48.75 = -x+2x
26.25 = x
x = 26.25
2007-02-09 8:59 pm
2(37.5-x)=48.75-x
2 * 37.5 - 2 * x = 48.75 - x
75 - 2x = 48.75 -x
75-48.75 = 2x -x
x = 26.25
2 * 37.5 - 2 * x = 48.75 - x
75 - 2x = 48.75 -x
75-48.75 = 2x -x
x = 26.25
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