2006-12-28 05:46:21 · 16 answers · asked by Merisa Smith 1 in Science & Mathematics ➔ Mathematics
3X -4 = 8
3X=8 + 4
3X = 12
X = 12/3
X= 4
2006-12-28 06:18:29 · answer #1 · answered by Anonymous · 2⤊ 0⤋
4
2006-12-28 14:30:06 · answer #2 · answered by Anonymous · 0⤊ 0⤋
4
2006-12-28 13:49:04 · answer #3 · answered by xfilerguy 2 · 0⤊ 0⤋
It would look like 3x-4=8 because it is 4 less than a number multiplied by 3.
The next step is to add 4 to both sides so the variable is alone.
3x-4+4=8+4(You can add or subtract stuff from one side as long as you do it to the other side.)
That would make the equation 3x=12
Next you divide by three because the opposite of multiplying is dividing.
So x=4, To know if you are right you can go back and plug x in and see if it works out.
2006-12-28 15:11:29 · answer #4 · answered by Fantom 1 · 0⤊ 0⤋
four less than 3 times a number equals 8
4 - 3x = 8
-3x = 8 -4
x = 4: -3
x = -4/3
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2006-12-28 16:03:33 · answer #5 · answered by aeiou 7 · 0⤊ 0⤋
8 plus 4 = 12
12 divided 3 = 4
2006-12-28 13:59:21 · answer #6 · answered by jerrycarr99029 3 · 0⤊ 0⤋
The equation would be 3x-4 = 8.
So add 4 to each side and you get 3x =12.
Then divide both sides by 3 and you get x = 4.
So the answer is 4.
:)
2006-12-28 13:50:24 · answer #7 · answered by April 3 · 0⤊ 0⤋
3x-4=8
+4=+4 Add 4 to both sides
3x=12
3x/3=12/3 Divide both sides by 3
x=4
2006-12-28 14:19:48 · answer #8 · answered by i.heart.u 5 · 0⤊ 0⤋
That's a joke. 3-4=-1, 8/-1=-8. There you go, -8
2006-12-28 14:05:52 · answer #9 · answered by gooeyjim 2 · 0⤊ 0⤋
let the number be x.
so
3x-4=8
3x=8+4
x=12/3
=4
the answer si 4.
2006-12-29 02:43:09 · answer #10 · answered by tarena 2 · 0⤊ 0⤋
3x - 4 = 8
3x - 4 + 4 = 8 + 4
3x = 12
3x/3 = 12/3
x = 4
The answer is x = 4
Insert the x value into the equation
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3x - 4 = 8
3(4) - 4 = 8
12 - 4 = 8
8 = 8
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2006-12-28 14:59:54 · answer #11 · answered by SAMUEL D 7 · 0⤊ 0⤋