a) 8(k+2f);b) 99t-22k+11;c) 10(5r-k-3);d) 2(5m+8n+16).
18k-6k+23k-75 = 6535k - 75 = 6535k = 140k = 4
7k+9f+80xy-4k-9f+11xy = 3k+80xy+11xy = 3k+91xy
18x-4x+x = 15x = 15 * 8 = 120.
a) 8(k+2f);
b) 99t-22k+11;
c) 10(5r-k-3);
d) 2(5m+8n+16).
18k-6k+23k-75 = 65
35k - 75 = 65
35k = 140
k = 4
7k+9f+80xy-4k-9f+11xy = 3k+80xy+11xy = 3k+91xy
18x-4x+x = 15x = 15 * 8 = 120.