Question

Which of the following phrases translates to m - 7?

A. the difference between seven and a number
B. a number subtracted from seven
C. seven minus a number
D. a number decreased by seven

Answer 1

m is an unknown number that is being decreased by 7.

OPTION A IS WRONG BECAUSE MATHEMATICALLY IT IS WRITTEN AS

`7 - m`

B IS WRONG BECAUSE IT MEANS

`7 - m`

C IS WRONG BECAUSE IT MEANS

`7 - m`

BUT D IS THE ANSWER BECAUSE IT MEANS

`m - 7`

SINCE m IS TREATED AS AN UNKNOWN NUMBER.

GOODLUCK!!!!