If you double a number then subtract 75, you get one-third of the original number.what is the original number?

Question

If you double a number then subtract 75, you get one-third of the original number.what is the original number?

Answer 1

Let x be the number.

2x-75=x/3

multiply both sides by 3

6x-225=x

5x=225

x=45

Answer 2

Don't have a clue.

Would like to know though  

Answer 3

Twelvety!

Answer 4

x - number

2x - 75 = 1/3(x)

combine the x's

2x- 1/3(x) = 75

x = 45

Answer 5

2X - 75 = X/3

6X - 225 = X

6X - X = 225

5X = 225

X = 45

Answer 6

answer is 2x-75=x/3

6x-225=x

5x=225

x=45

Answer 7

2x-75=1/3x

"x3 on both side"

6x-225=x

"get all Xs on one side"

5x-225=0

move the non X term to other side

5x=225

divide by # of Xs

x=45

Answer 8

The answer is 45.

2x-75=1/3x

divide both sides by 1/3 giving you

6x-225=x

add 225 to both sides and subtract x from both sides giving you

5x=225

Divide both sides by 5

x=45

Answer 9

hi

2x-75=1/3x ==> 5/3x=75

5x=75*3 ==> x=(75*3)/5

x=15*3   x=45

Answer 10

45 - if you double 45 you get 90, and then if you subtract 75 from 90 you get 15, which is one third of 45

Answer 11

i have no idea :D