Question

I will show a picture of my equation

Answer 1

47 = 2(k + 3) + 3(k - 3)

47 = 2k + 6 + 3k - 9

47 - 6 + 9 = 2k + 3k

56 - 6 = 5k

50 = 5k

k = 50/5

k = 10

Result k = 10