Answer:
A.
3(2x + 4) + 2(3x - 4)
6x + 12 + 6x - 8
12x + 4
B.
3 (10 + 4) + 2(15 - 4)
3 (14) + 2 (11)
42 + 22
64
C. for the first part, i combined all like terms until it was in simplist form. for the second part i replaced x with 5 and solved the problem using 5 instead.
Explanation:
i hope this is right, if not sorry