數學題....要求X既答案

2010-10-24 3:53 am
請幫忙解答以下題目:

-4(2x) = 3x-22

我想求X既答案,最好有埋公式...thanks
更新1:

唔好意思,我打錯了題目,正確應該如下,sorry: -4(2-x) = 3x-22

回答 (5)

2010-10-24 6:18 pm
✔ 最佳答案
-4(2-X)=3x-22
-8+4x=3x-22
4x-3x=-22+8
x=-14
參考: me
2010-10-24 11:32 pm
-4(2x) = 3x-22
-8x = 3x-22
-8x-3x = -22
-11x = -22
x = (-22)/(-11)
x = 2
參考: 數學書and自己
2010-10-24 4:32 am
-4(2-X)=3x-22
-8+4x=3x-22
4x-3x=-22+8
x=-16
參考: me
2010-10-24 4:07 am
-4(2x) = 3x-22
-8x = 3x-22
-8x-3x = -22
-11x = -22
x = (-22)÷(-11)
x = 2

2010-10-24 18:24:26 補充:
4(2-X)=3x-22
-8+4x=3x-22
4x-3x=-22+8
x =-14
參考: , me
2010-10-24 3:58 am
-4(2x) = 3x-22
-8x = 3x-22
-8x-3x = -22
-11x = -22
x = (-22)/(-11)
x = 2
參考: 自己


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