Find the values of the unknown variables a, b, c, d, e, and f. Substitute the variables of the unknown numbers below to find the code to unlock the puzzle!
1. x to the 4th power times x to the a equals x to the 12th power
2. y to the b/ y to the 5th power
3. 3 to the c equals 1/27
4. (m to the 3rd) to the 2nd equals m to the d
5. 7 to the 0 equals e
6. 4 to the -2 power times 4 to the 9th times 4 to the -5 equals 4 to the f
CODE: F(B+D)+A(E-C)