我想要一d數學練習題明天就要

2008-06-15 2:25 am
快!方程式,份數加減%×
例:x加1=1
x加1減1=1減1
x=0
更新1:

不是, just needed 問題and no x+7-24=123 jus tx+1=2

回答 (2)

2008-06-15 2:44 am
✔ 最佳答案
解方程。

1) x÷12+3=87

2) (x+4)÷5=11

3)6x=48-2x

________________________________________________________________

1) x÷12+3=87
  x÷12 = 87-3
  x÷12 = 84
    x = 84÷12
    x = 7

2) (x+4)÷5=11
  x+4 = 11*5
  x+4 = 55
   x = 55-4
   x = 51

3) 6x = 48-2x
  8x = 48
  x = 48÷8
  x = 6

P.S. website given is for your reference
2008-06-15 2:40 am
y+53/53 +50-10=30*4/2
100




y=30

2008-06-14 18:42:57 補充:
y+53/53-10=30*4/2
______----
______100


y=30

2008-06-14 18:45:22 補充:
sorry


y+53/53-10=30*4/2
____----
____100


y=30


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