Question

3. What number should replace each n?
(i) 3 (n + 6) = (3 x 5) + (36)
(ii) (7 x 4) + (n x 3) = 7 (4+3)
(iii) (9 x 8) + (8 x 8) = (9+8)​

Answer 1

Step-by-step explanation:

1) 3n+18=15+36

3n=15+36-18

3n=33

n=11

2) 28+3n=28+21

3n=28+21-28

3n=21

n=7

3).72+64=17

Last one is incomplete so complete it if u want it's solution