Question

A number s is subtracted from 7. When the result is divided by 3, the quotient is 2. What is the number?

Answer 1

$\frac{7-s}{3}=2$
7 - s = 2 * 3
-s = 6 - 7 
-s = -1 |*(-1)
s = 1

Answer 2

Answer is 1....7-1=6 6÷3 is 2