5*(3c+2)=8*(9-2c)
15c + 10 = 72 – 16c
15c + 16c = 72 – 10
31c = 62
c = 2
10k+2*(7k-2)=5*(4k+3)+3k
10k + 14k – 4 = 20k + 15 + 3k
10k + 14k – 20k – 3k = 15 + 4
k = 19
5*(3c+2)=8*(9-2c)
15c + 10 = 72 – 16c
15c + 16c = 72 – 10
31c = 62
c = 2
10k+2*(7k-2)=5*(4k+3)+3k
10k + 14k – 4 = 20k + 15 + 3k
10k + 14k – 20k – 3k = 15 + 4
k = 19