Friday

August 29, 2014

August 29, 2014

Posted by **Anonymous** on Wednesday, November 13, 2013 at 12:45pm.

40-x/3=4

please not the / means a fraction.

I already know that x is 28 when I first saw the question but I'm not sure how to show my working out.

- Math (ANYONE! -
**Anonymous**, Wednesday, November 13, 2013 at 1:00pmPlease I'm really struggling

- Math -
**Bosnian**, Wednesday, November 13, 2013 at 1:14pm40 - x / 3 = 4 Add x / 3 to both sides

40 - x / 3 + x / 3 = 4 + x / 3

40 = 4 + x / 3 Subtract 4 to both sides

40 - 4 = 4 + x / 3 - 4

36 = x / 3 Multiply both sides by 3

108 = x

x = 108

- Math -
**Anonymous**, Wednesday, November 13, 2013 at 1:20pmif you put that back into the equation it doesn't work.

- Math -
**Bosnian**, Wednesday, November 13, 2013 at 1:20pmIf your exspressio mean :

( 40 - x ) / 3 = 4

Then multiply both sides by 3

3 * ( 40 - x ) / 3 = 3 * 4

40 - x = 12 Subtract 12 to both sides

40 - x - 12 = 12 - 12

28 - x = 0 Add x to both sides

28 - x + x = 0 + x

28 = x

x = 28

- Math -
**Anonymous**, Wednesday, November 13, 2013 at 1:22pmthank you!!

- Math -
**Bosnian**, Wednesday, November 13, 2013 at 1:23pmYou're welcome

**Related Questions**

MATH PLEASE HELP!!!!! - Find the value of this expression. 70+40/5*4

Math - 1. Find the value of Sin^-1(-1/2) a. -30 degrees b. 30 degrees c. 150 ...

Math - S is directly proportional to M^3. It is given that S=36 for a certain ...

Math - Please help me I am terrible at math, and this is my last class before ...

math - If y varies diretly with x, write an equation for the direct variation. ...

Math....please help - A set of 50 data values has a mean of 27 and a variance of...

SAT Math - Can I please get some help on these questions: 1. If , find the value...

math - 1)In triangle ABC, C=60 degrees, a=12, and b=5. Find c. A)109.0 B)10.4 C)...

math - find a value between the numbers 1/4 and 1/3 please show work. (it can be...

Chemistry - A(g) + B(g) <=> AB(g) At a given temperature 1.0 mole of A and...