If 3x=2
then
18x=12
I don't understand how the answer came out to be 12.can someone please show me a walkthrough of it.thank you.
2006-12-23 09:59:07 · 16 answers · asked by iNeedhelp 4 in Science & Mathematics ➔ Mathematics
Both sides need to be multiplied by 6:
6(3)x=6(2)
18x=12
2006-12-23 11:42:13 · answer #1 · answered by Anonymous · 4⤊ 0⤋
The easiest way to do this problem and to understand it is first solve for "x". You know that 3x = 2 Solve for "x" by dividing both sides by "3" to get "x" by itself. If you do that you are left with the equation x = 2/3 You now know that x = 2/3 so pulg in "2/3" in the equation 18x = 12 You multiply 18 by 2/3 which gives you 12.
Voila
2006-12-23 20:46:15 · answer #2 · answered by Brian 1 · 0⤊ 0⤋
3x times 6 = 2 x 6
18x = 12
2006-12-23 18:07:05 · answer #3 · answered by Pocket Rocket 2 · 1⤊ 0⤋
X=2/3 , so 3 multiplied by 2/3 equals 2 , And 18 multiplied by 2/3 equals 12 , Is that simple enough for ya ?
2006-12-23 22:18:25 · answer #4 · answered by Count Acumen 5 · 0⤊ 0⤋
One way is to set up proportions, to fractions that are equal. 3/2=18/12. Then you look at the numerator, the top number of a fraction, and find what you do to the smaller number to make it equal the larger number. Here you multiply 3 times 6 to equal 18. Now what you do to the numerator you have to do to the denominator, to bottom number of a fraction. Since you multiplied the numerator by 6 you have to multiply the denominator by 6. 2 times 6 equals 12. Hope this helps. Don't give up.
2006-12-23 18:37:16 · answer #5 · answered by BILL 6 · 1⤊ 0⤋
To turn 3x into 18x, you multiply by 6. thus, if you multiply both sides of 3x = 2 by 6, you get 18x = 12.
2006-12-23 18:00:58 · answer #6 · answered by Anonymous · 2⤊ 1⤋
theyre both the same equation. if you multiply both sides by 6 (3x=2)you get 18x=12
2006-12-23 18:03:14 · answer #7 · answered by zlisa98 3 · 1⤊ 0⤋
OK WHAT WOULD GO INTO BOTH 3 & 2 WELL LETS SEE IT WOULD BE 6 CORRECT.. AND THEN 6 TIMES 3 = 18 AND 6 TIMES 2 = 12.... SO NOW IM GOING TO TALK YOU THROUGH YOU GOT 18... YOU (GOT 3X=2 AND 18X 12) SO YOU WOULD COME UP WITH 6 THEN 18 DIVIDED BY 18 IS 3X SO THEN 12 DIVIDED BY 2 = 6 SO THATS HOW YOU GOT 3X=2 AND 18X=12 IF YOU STILL DONT GET IT EMAIL ME OR IM ME
2006-12-23 18:07:23 · answer #8 · answered by true fashion girl 2 · 1⤊ 3⤋
multiply both sides of the equation by 6
3x times 6 equals 18x
2 times 6 equals 12
2006-12-23 18:03:39 · answer #9 · answered by MrWiz 4 · 1⤊ 0⤋
3x = 2
x = (2/3)
18(2/3) = (36/3) = 12
so
18x = 12
2006-12-23 20:40:32 · answer #10 · answered by Sherman81 6 · 0⤊ 0⤋