Question

Which expressions are equivalent to 9+h+ (j+k)? Check all that apply.

9+(n+}) +
(9+1) +jk
(9+h) +j+k
9+(hj)+k
gh+jk
g(h+)
9+h[j+k)

Answer 1

1,3

Explanation:

Answer 2

Answer:According to the associative property of equality: (a + b) + c = a + (b + c) we can see that the parenthesis do not mean anything when we are only doing addition.

So answers 1. and 3. are correct