How many meatballs are required for a party of 25adults and 6 children?? Please help

The given equation is m = 4a+2c
with a = adults and c = children.
You are told 25 adults and6 children are going, replace the letters withe the gievn numbers:
m = 4(25) + 2(6)
Multiply:
m = 100 + 12
Add:
M = 112
112 meatballs are needed.