Question

Q= (R-M) over 2

R-M/2
R= 21
M= 15
The image best explains, I cannot math and math cannot me, please I need help.

Answer 1

3

Explanation:

substitute the numbers into the equation Q= (21-15)/2

you then start with the numbers within the parathesis: 21 - 15 = 6

then divide it by 2: 6/2 = 3

answer: Q = 3

Answer 2

3

Explanation:

(21-15)/2

6/2

= 3

......