Question

What is the difference of 8 times a number r and 12?

Answer 1

The difference of 8 times a number r and 12 is solved for a number r and is given by
`r=(3)/(2)`

Explanation:

Given problem is the difference of 8 times a number r and 12

It can be written as

`(8* r)-12`

To simplify the above expression :

8r-12

`8r-12=0`

`8r-12+12=0+12` ( using addition property of equality )

`8r=12`

`8r((1)/(8))=12((1)/(8))` (using division property of equality )

`r=(3)/(2)`

Therefore
`r=(3)/(2)`

Therefore the difference of 8 times a number r and 12 is solved for a number r and is given by
`r=(3)/(2)`