if 4 less than 3 time a certain # is 2 more than the # what is the #
2007-12-11 16:01:27 · 14 answers · asked by Anonymous in Education & Reference ➔ Homework Help
4 less than 3 times the number can be written as 3x - 4.
2 more than the number can be written as x + 2.
So...
3x - 4 = x + 2
add 4 to both sides and you get
3x = x + 6
subtract x from both sides and you get
2x = 6
divide both sides by 2 and you get your final answer of
x = 3
To check your answer:
3 times 3 is 9, and 4 less than that is 5.
2 more than 3 is 5.
2007-12-11 16:07:17 · answer #1 · answered by Anonymous · 1⤊ 1⤋
2
2007-12-12 00:04:15 · answer #2 · answered by jerrry. 3 · 0⤊ 1⤋
3
2007-12-12 00:04:57 · answer #3 · answered by god is love 2 · 1⤊ 1⤋
The equation expressed is 3x-4 = x+2 so x is six less than 3 times x; two times x must therefore be 6 so x=3.
2007-12-12 00:03:36 · answer #4 · answered by Stag S 5 · 0⤊ 1⤋
what the question is asking is"
4 less than something = something -4
4 less than 3 times something = 3 times something - 4
something = x.... do the same for 2 more than something and you get the following:
3x - 4 = x + 2
(it helps to write it out)
and then move the x to the left and -4 to the right to get
3x - x = 2 + 4
2x = 6
x = 3
2007-12-12 00:05:44 · answer #5 · answered by Anonymous · 1⤊ 1⤋
# is 2
2007-12-12 00:04:37 · answer #6 · answered by shaz 2 · 0⤊ 1⤋
Write it algebraically:
3x-4 = x+2
so if x=3:
3x=9 -4=5 and 3+2=5
therefore x=3
2007-12-12 00:08:40 · answer #7 · answered by Big Dave 5 · 0⤊ 1⤋
# is 3
2007-12-12 00:04:48 · answer #8 · answered by fintoecho 4 · 1⤊ 1⤋
3x-4=x+2
simplify to: 2x=6 by subtracting x from the right side and moving the 4 to the right side.
x=3
2007-12-12 00:04:52 · answer #9 · answered by nicknameyo 3 · 1⤊ 1⤋
1/2#, so # has to equal 4
2007-12-12 00:04:08 · answer #10 · answered by Blunk 2 · 0⤊ 1⤋