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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)

[tex]q^{18}[/tex]

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

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