Equivalent Expressions
We are given the operation:
9q + 9q. The result of the operation is found by joining like terms:
9q + 9q = 18q
Now we need to select the expressions that are equivalent to 18q.
a) 3q + 6q + 9q = (3+6+9)q = 18q
This expression is equivalent to the original operation
b) q*18 = 18q
This expression is also equivalent to the original operation
c)
This is the 18th power of q and is not equivalent to 18q
d) 6q + 4q + 8q = (6+4+8)q = 18q
This expression is also equivalent to the original operation
You must select
3q + 6q + 9q
q*18
6q + 4q + 8q
All of them but the third one