Question

What number should replace each n?
(i3 (n + 6) = (3 5) + (3 x 6)
(ii) (7 x 4) + (n x 3) = 7 (4+3)
(iii) (9 x 8) + (8 * 8) = (9+8)n​

Answer 1

Answer:

i) 3n+ 6 = 35 + 18

3n + 6 = 53

3n. = 53 - 6

3n = 47

n. = 47/3

Answer 2

Answer:

(i) 3n+ 6 = 35 + 18

3n+6=53

n= (53-6)/3

n= 47/3

(ii) (7 x 4) + (n x 3) = 7 (4+3)

= 28+3n=7×7

= 28+3n=49

= n= (49-28)/3

= n= 7

(iii) (9 x 8) + (8 * 8) = (9+8)n​

=72 + 64 = 17n

= 136=17n

= n= 136/17

= n=8