The question is written unclear.
my guess would be 24:7 (24/7)
For the equation to work, you have to have the same number on both sides of the equal sign
so to find ?, you can do:
13 - 2 = 12 - ? Simplify
11 = 12 - ? Subtract 12 on both sides
-1 = - ? Multiply -1 on both sides
1 = ?
The answer to your question is w =40(2)n [n is in exponent form I just couldn’t type it that way ]
