Solve equations?

Question

3x-6=12
4

http://i73.photobucket.com/albums/i226/BOYSINBLACK/untitled-1.jpg

this is a full problem the 4 is under as in /

Answer 1

Multiply both sides by 4,
then 3x-24=48.
Add 24 to both sides
3x=72
Divide both sides by 3
x=24

Answer 2

3x/4 -6 = 12
first you need to add 6 to the twelve:
3x/4 = 12+6
3x/4 = 18
now you need to get the "x" variable on it's own, to do this you must multiply by the recipicol of 3/4 which is 4/3 (Remember you must multiply this to both sides of the equation):
(4/3)3x/4=18(4/3)
x= 72/3
x=24
* you can then check that 24 is the answer by replace the "X" with 24 like so:
3(24)/4 -6 = 12
72/4 -6 =12
18-6=12 (It checks, so it is therefore the right answer)

Answer 3

3x-6=12
3x = 12 + 6
3x = 18
x = 18/ 3
:. x = 6

3x/4 - 6 = 12 ( * by 4 on both sides)
3x - 24 = 48
3x = 48 + 24
3x = 72
x =72/3
:. x = 24

Answer 4

(3x/4) -6 = 12

Multiply everything by the reciprocal, 4/3 to get x

(3x/4)(4/3)- 6 (4/3) =12 (4/3)

You get x isolated, then reduce the fractions to whole numbers, so...

x- 8= 16 Add 8 to both sides to isolate x, and then..
x=24

Substitute 24 into x to see if it matches

Answer 5

ah.. okay.. the easiest way is to get rid of the fraction by multiplying every term by 4. so you will get 3x- 6(4)=12(4) right? so you will get 3x-24=48. you add 24 to the other side... you will get 3x=72. x=36. Feel free to email me at [e-mail] if you have questions.

Answer 6

Reading this as:-
3x/4 - 6 = 12
3x/4 = 18
3x = 72
x = 24

Answer 7

3x/4 = 12 +6
3x/4 = 18
3x =18X4
3x = 72
x = 72/3
x = 24

Answer 8

3x/4 - 6=12
3x/4 +6 +6
3x/4=18
3x/4=18/1 ( cross multiply)
3x 18= _____ 3x=72
4 1 ______ x=24

Answer 9

3x/4-6=12
3x/4=12+6
3x/4=18
3x=18x4
3x=72
x=72/3
x=24