Question

Which expression is equal to p + (m + n)?

pm + n
(p + m) + n
(p + m) ⋅ n
p + mn

Answer 1

@mathstudent55 @mathmath333 @dumbo

Answer 2

(p + m) + n

Answer 3

with addition moving the parenthesis doesn't affect the solution

Answer 4

aka associative property

Answer 5

A student attempted to generate an equivalent expression using the distributive property, as shown below:

7(y − 5) = y − 35

What was the mistake made?

7 was not multiplied by y
7 was not multiplied by 5
Incorrect sign was used for the first term
Incorrect sign was used for the second term @dtan5457

Answer 6

7 was not multiplied by y