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4+8(9+6b)=28
發問:
4+8(9+6b)=28
最佳解答:
4 + 8 ( 9 + 6b ) = 28 4 + 8 * 9 + 8 * 6b = 28 4 + 72 + 48b = 28 76 + 48b = 28 48b = 28 - 76 48b = -48 b = -48 / 48 b = -1 2007-09-29 19:43:57 補充: 另一做法︰4 + 8 ( 9 + 6b ) = 288 ( 9 + 6b ) = 28 - 48 ( 9 + 6b ) = 24 9 + 6b = 24 / 8 9 + 6b = 36b = 3 - 96b = -6b = -6 / 6b = -1
其他解答:
4+8(9+6b)=28 4+72+48b=28 76+48b=28 48b=28-76 48b=-48 b=-48/48 b=-1|||||4+8(9+6b)=28 4+72+48b=28 48b=28 - 4 - 72 48b= -48 b= -1|||||4+8(9+6b)=28 4+72+48b=28 76+48b=28 76-28+48b=0 48+48b=0 48b=-48 b=-1|||||4+8(9+6b)=28 4+72+48b=28 76+48b=28 76+48b-76=28-76 48b=-48 b=-1|||||4+8(9+6b)=28 4+72+48b=28 48b=28 - 4 - 72 48b= -48 b= -1
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