Question

Explain and help please!

29 + (8 + 17)
Which of the following expressions is equivalent to the expression above?

A. (29 + 8) + (29 + 17)

B. (29 + 8) × (29 + 17)

C. 29 + (17 + 8)

D. 29 × 8 + 29 × 17

Answer 1

See in addition

(a+b)+c = a+(b+c)

Answer 2

for example let a = 2, b = 3 and c = 4
then, (a+b)+c is (2+3)+4 = (5)+4 = 9
and similarly, a+(b+c) = 2+(3+4) = 2+7 = 9
So we can say that a+(b+c) = (a+b)+c

Answer 3

Oh ok I understand now! Thanks I mean it!