Question

9k=6k+12

5k-2=3k+10

2k+8=15

Ajudaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

Answer 1

Resposta:

9k=6k+12

9k-6k = 12

3k = 12

k = 12/3

k=4

5k-2=3k+10

5k-3k = 10+2

2k = 12

k = 12/2

k = 6

2k+8=15

2k = 15 - 8

2k = 7

k = 7/2