Question

Dennis thought of a number. He adds 0.5 to that number and then multiplies the new result by 4. He then subtracts 2 and divides the number by 2. His final answer is 48. What number did Dennis start with?

Answer 1

Heya!!Here is your answer friend ⤵⤵

Let the chosen number be X

4(X + 0.5)= 4X +2

4X+2-2 = 4X

4X/2 =48

2X=48

X=24

Hence the number is 24

Hope it helps you ✌✌

Answer 2

Let the number Dennis thought of be “x”
So,{ [ (x + 0.5) 4] - 2} /2 = 48 (I’ve combined all the steps into one equation)
=> { [4x + 2] - 2} / 2 = 48
=> { 4x } / 2 = 48
=> 4x = 48*2
=> x = 96/4
=> x = 24

Therefore the number he thought of was 24.
Hope this helps ya