2006-12-04 05:13:54 · 8 answers · asked by PORCHE P 1 in Science & Mathematics ➔ Mathematics
Your ultimate goal is to isolate the n by itself.
Your first step is to bring over the -3 to the right hand side. Keep in mind that whenever you bring a number over to the other side, it becomes its positive version
4n = 25 + 3
4n = 28
Now, you have to divide both sides by 4, in order to leave the n by itself.
4n/4 = 28/4
n = 7
2006-12-04 05:34:19 · answer #1 · answered by Puggy 7 · 0⤊ 0⤋
Use the order of operations backwards, starting with addition and subtraction. Add 3 to both sides.
4n - 3 + 3 = 25 + 3
4n = 28
Then divide both sides by 4.
(4n)/4 = 28/4
n = 7
2006-12-04 13:35:58 · answer #2 · answered by bluechibimercury 2 · 0⤊ 0⤋
4n - 3 = 25 add 3 to each side
4n+3-3=25+3 combine like terms
4n=28 divide both sides by 4
n=28/4=7
check
4*7-3=25
28-3=25
25=25
2006-12-04 14:18:01 · answer #3 · answered by yupchagee 7 · 0⤊ 0⤋
4n - 3 = 25
first, add 3 to both sides of the equation
& you are left with:
4n = 28
then divide both sides of the equation by 4
& you are left with:
n = 7
hope that's the answer you were looking for xP
2006-12-04 13:34:24 · answer #4 · answered by nicollex0 2 · 0⤊ 0⤋
4n - 3 = 25 (Add 3 to both sides)
4n = 28 (Divide both sides by 4)
n = 7
Check:
4(7) - 3 = 25
28 - 3 = 25
25 = 25
QED
2006-12-04 15:07:41 · answer #5 · answered by CSUFGrad2006 5 · 0⤊ 0⤋
n=28. what you do is add 25 to 3. a number with a variable means number times the variable. plug in 38 for the variable
2006-12-04 17:53:26 · answer #6 · answered by Anonymous · 0⤊ 0⤋
first 25+3
4n=28
secound 28/4
n=7
That wasen't too hard, now, was it?
2006-12-04 14:06:27 · answer #7 · answered by sweetablizza 1 · 0⤊ 0⤋
n=7
this is a joke....right?
2006-12-04 13:32:08 · answer #8 · answered by pzratnog 3 · 1⤊ 1⤋