I'm thinking of a number
then I multiply it by 3
then I add 4
then divide the answer by 4
my final answer is 3 less than the number I thought of in the beginning
what is the number I'm thinking of
16
? * 3 + 4 ÷ 4 = ? - 3
16 * 3 + 4 ÷ 4
48 + 4 ÷ 4
52 ÷ 4
13
13 3 less than 16
Let N be the number
( [ N * 3] + 4 ) / 4 = N - 3
(3N + 4 ) / 4 = N - 3 multiply both sides by 4
3N + 4 = 4 (N - 3)
3N + 4 = 4N - 12 add 12 to both sides, subtract 3N from both sides
16 = N
So
16 - 3 = 13
+484 
