Question

X=

a) 6 2/3

b) 9

c) 12

Answer 1

X=9

Explanation:

Answer 2

b). x = 9.

Explanation:

The required theorem gives:

4 * (5 + 4) = 3 * (x + 3)

36 = 3x + 9

3x = 27

x = 9.

( I can't recall the theorem's name.)