Question

3. Which of the following is not true?
(a) (7 + 8) + 9 = 7+ (8 +9)
(c) 7+8 x 9 =(7 + 8) × (7 +9)
(b) (7×8) ×9 = 7 × (8 x 9)
(d) 7× (8 + 9) = (7 × 8) + (7 x 9)​

Answer 1

7+8×9=(7+8)×(7+9)

because first is 79 and second is 72