I don't want an answer, i want to see how you did it. I have learnt find a lcd, the equation is
3x/4 - 2 = x/6 i really want to learn it so please help thank you.
2007-11-12 10:52:10 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
To solve: 3x/4 - 2 = x/6
The lcd is 12
multiplying both sides of the equation gives:
[(3x/4)*12] - (2*12) = (x/6)*12
(3x * 3) - 24 = x * 2
9x - 24 = 2x
collecting like terms:
9x - 2x = 24
7x = 24
x = 24/7
2007-11-12 11:05:01 · answer #1 · answered by mitsu 2 · 0⤊ 0⤋
Multiply both sides of the equation by the LCD and cancel the denominators.
Like (3x/4-2)12=(x/6)12
which gives 9x-6=2x
2007-11-12 10:55:28 · answer #2 · answered by Small Victories 4 · 0⤊ 0⤋
I assume you are solving for x so first you want to add two to both sides to get: 3x/4 = x/6 + 2. Then you need to subtract x/6 from both sides to get 3x/4 - x/6 = 2. You need to get a common denominator which would be 12 so you multiply 3x and 3 and then 2 and x and you will get 9x/12 - 2x/12 = 2 which you then get to be 7x/12 = 2. Multiply by 12 on both sides to cancel the denominator to get 7x = 24. Divde by 7 on both sides to get x by itself and you end up with x = 24/7.
2007-11-12 11:03:48 · answer #3 · answered by jessi 1 · 0⤊ 0⤋
3x/4 - 2= x/6
use 12 as the lcd
9x-24=2x
7x=24
x=3 3/7
2007-11-12 11:08:38 · answer #4 · answered by Dave aka Spider Monkey 7 · 0⤊ 0⤋
Try multiplying both sides of the equation by the lcd.
2007-11-12 10:55:30 · answer #5 · answered by diamondlance2 2 · 0⤊ 0⤋
3x/4-2=x/6;
multiply both sides by 12;
9x-24=2x
7x=24;
x=24/7. ANS.
2007-11-12 11:03:38 · answer #6 · answered by Anonymous · 0⤊ 0⤋