5x-7=9
it needs to have two answers but i only get 1 how do you this?
it says "use comma to separate answers as needed"?
how do you do this type of problem?
how do you slove this equation?
2008-04-03 3:34 pm
回答 (5)
2008-04-03 3:54 pm
✔ 最佳答案
Question should perhaps be :-5x² - 7 = 9
5x² = 16
x² = 16 / 5
x = ± 4 / √ 5
2008-04-03 3:40 pm
well it says to use commm AS NEEDED. so i think you are only suposed to have one anwser which would be 3.2 because:
5x-7=9
add 7 to each side
5x=16
divide each side by 5
x=3.5 so your anwser would be (3.5)
i also think only 1 anwser because you only have one variable (x)
5x-7=9
add 7 to each side
5x=16
divide each side by 5
x=3.5 so your anwser would be (3.5)
i also think only 1 anwser because you only have one variable (x)
2008-04-03 3:39 pm
5x-7=9
5x=16
x = 16/5
There is only one answer. "Use comma to separate answers as needed" just means that if you have more than one answer, you need to use a comma to separate the values. Since you only have one answer, no comma is needed.
5x=16
x = 16/5
There is only one answer. "Use comma to separate answers as needed" just means that if you have more than one answer, you need to use a comma to separate the values. Since you only have one answer, no comma is needed.
2008-04-03 3:38 pm
It only has one answer, so you DON'T need commas.
2008-04-03 3:37 pm
5x - 7 = 9
5x = 9 + 7
5x = 16
x = 16/5
x = 3 1/5 (3.2)
5x = 9 + 7
5x = 16
x = 16/5
x = 3 1/5 (3.2)
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