If X - 42 = 0 then X = ?
回答 (10)
2017-09-27 2:50 am
✔ 最佳答案
We know that X - 42 = 0If we add or subtract same number on the both sides of an equation, the equation remains the same.
So, adding 42 on both sides of the equation, we get
X - 42 + 42 = 0 + 42
If we calculate -42 + 42, it is equal to 0
So, X - 0 = 0 + 42
Thus, X = 42.
We can also solve this problem simply by remembering the rule that a number with negative sign on left hand side of a equation will turn positive, if we transfer it to right hand side of the equation and vice-versa.
In X - 42 = 0, if we transfer 42 from left hand side of the equation to right hand side,
We simply get, X = 42
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2017-09-26 6:02 pm
X - 42 = 0
X - 42 + 42 = 0 + 42
X = 42
X - 42 + 42 = 0 + 42
X = 42
2017-09-26 7:16 pm
X - 42= 0 then X= 0
2017-09-26 5:30 pm
X = 42
2017-09-26 5:26 pm
42
2017-09-26 5:20 pm
What number when subtracted by 42 will equal to zero?
2017-09-26 5:15 pm
+42
2017-09-26 10:33 pm
X = 42
2017-09-26 10:31 pm
42.
2017-09-26 7:36 pm
42
收錄日期: 2021-04-18 17:50:51
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https://hk.answers.yahoo.com/question/index?qid=20170926091519AAdY6ic