Question

Which of the following is not true? *

2 points

(7 + 8) + 9 = 7 + (8 + 9)

(7 × 8) × 9 = 7 × (8 × 9)

7 + 8 × 9 = (7 + 8) × (7 + 9)

7 × (8 + 9) = (7 × 8) + (7 × 9)

​

Answer 1

Answer:

(c)

Step-by-step explanation:

(a) 15+9 = 7+17

24 = 24

(b) 56 ×9 = 7×72

504 = 504

(c) 7 + 72 = 15 × 16

79 ≠ 240

(d) 7 × 17 = 56 + 63

119 = 119