2007-01-11 14:10:24 · 15 answers · asked by carmel32 1 in Science & Mathematics ➔ Mathematics
For these kind of problems, you work backwards. So, starting with 24, you divide (opposite of multiply) by 2.
24/2 = 12
Then, 5 is supposed to be added to n, so instead of adding, subtract.
12-5 = 7
Therefore, n = 7
You could also just write an equation to solve this. I think the above way is easier to do in your head.
(5+n)(2) = 24
10 + 2n = 24
2n = 14
n = 7
2007-01-11 14:18:39 · answer #1 · answered by Anonymous · 0⤊ 0⤋
If you say that n is that number then adding 5 gets you n+5
Now multiply it by two and you get 2n+10
That equals 24 so you have an equation
2n + 10 = 24
Take 10 away from both sides of the equation and you get 2n = 14
So that makes n = 7 which is the answer.
2007-01-11 22:14:48 · answer #2 · answered by Rich Z 7 · 0⤊ 0⤋
2(n + 5) = 24 => 2n + 10 = 24 => 2n = 14 => n = 7.
2007-01-11 22:15:01 · answer #3 · answered by flyfisher_20750 3 · 0⤊ 0⤋
7 of course
5+n x 2=24
back track it by:
24 divided by 2 = 12
12-5=7
.'. n=7
btw: the symbol .'. is the way the computer makes the 3 pointed triange; the therefore symbol. just incas u were wondering lol
2007-01-11 22:20:01 · answer #4 · answered by watching the sunset 5 · 1⤊ 0⤋
2(n + 5) = 24
2n + 10 = 24
2n = 14
n = 7
2007-01-11 22:15:03 · answer #5 · answered by Tom :: Athier than Thou 6 · 0⤊ 0⤋
(5 + n) * 2 = 24
10 + 2n = 24
2n = 24 - 10
2n = 14
n = 7
2007-01-11 22:24:49 · answer #6 · answered by Piguy 4 · 0⤊ 0⤋
5+n=answer*2=24:answer=y
5+n=y*2=24
2 1/2+1/2n=12
1/2n=-2 1/2+12
1/2n=10 1/2
2/1*1/2n=10.5*2
n=21
you can check my work and see if i'm right or not
2007-01-11 22:20:03 · answer #7 · answered by rose a 1 · 0⤊ 0⤋
(5+n)2=24
5+n=12
n=7
2007-01-11 22:14:08 · answer #8 · answered by Anonymous · 2⤊ 0⤋
(n+5)x2 = 24, which leads to:
n+5 = 12 or to:
n=7. answer.
2007-01-11 22:15:38 · answer #9 · answered by Anonymous · 0⤊ 0⤋
5+n=x
x*2=24
n=7
2007-01-11 22:14:04 · answer #10 · answered by Anonymous · 0⤊ 1⤋