5/2-d-2/4=?
? = 0
Simplify ➡ 1/2
1 ÷ 2 = 0.5
5/2 - D - 1/2 = ?
Remember I said the mystery number ( ? )is '0'
d(2)/ 2
2(d) - 1 / 2
5/2 - 2(d) - 1 / 2
Simplify ➡ 5/2
5 ÷ 2 = 2.5
6 - 2(d)
3 - D = 0
'd' is a negative for now.
So, -d + 3 = 0
- 3d - 3
-------- ------
-3 -3
× 1 × 1
--- ----
-3 -3
Number of solutions: One
Therefore, your answer would have to be
"d" is 3; d = 3
