Answer:
option A
associative property of addition
First Column, -x and 5 third column, -x and 2
Answer:
53
Step-by-step explanation:
2*19 =38
then by substituting 2x=38
then,
38+15=53
Answer:
Step-by-step explanation:
10/3
18/5
6/4 or 3/2 or 1 1/2
18/20 or 9/10
9/16