Answer: From the first box: distributive property, -9, -9, 63, 63, and 81
Step-by-step explanation: multiply the -9 by 1/2n and 7. Which will give you -18+(-9/2n)+(-63)+4n. Then you combine -9/2n+4n and get -1/2n. Then you combine -18-63 and get -81. So the answer is -1/2n-81