Question

Prope

Which statement shows the associative property of addition?
O (u+7)+ 13 = u + (7 + 13)
O If m+3= 18, then 18 = m+ 3.
O 21+ 2y = 2y + 21
O 3 (5-x) = (3.5) · x

Answer 1

(u+7)+ 13 = u + (7 + 13)

Explanation:

This statement shows the associative property of addition because it demonstrates that the sum of three numbers can be grouped in different ways without changing the result. The left side of the equation groups (u+7) first and then adds 13, while the right side groups 7 and 13 first and then adds them to u. However, both sides still simplify to the same sum of u+20.