What is x+6/2 + x-9/5 as a single fraction?
回答 (2)
2016-07-24 4:38 pm
[(x + 6) / 2] + [(x - 9) / 5]
= [5(x + 6) / 10] + [2(x - 9) / 10]
= [(5x + 30) / 10] + [(2x - 18) / 10]
= (5x + 30 + 2x - 18) / 10
= (7x + 12) / 10
= [5(x + 6) / 10] + [2(x - 9) / 10]
= [(5x + 30) / 10] + [(2x - 18) / 10]
= (5x + 30 + 2x - 18) / 10
= (7x + 12) / 10
2016-07-24 7:50 pm
A question that has been shown incorrectly.
Will assume :-
[ x + 6 ] / 2 + [ x - 9 ] / 5
5x + 30 + 6x - 54
-----------------------------
10
11x - 24
---------------
10
Will assume :-
[ x + 6 ] / 2 + [ x - 9 ] / 5
5x + 30 + 6x - 54
-----------------------------
10
11x - 24
---------------
10
收錄日期: 2021-04-18 15:20:56
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20160724082654AA1CE0r