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Identify the like terms among the following: \(7x\), \(5y\), \(-8x\), \(12y\), \(6z\), \(z\), \(-12x\), \(-9y\), \(11z\).
 
Answer:
 
\(x\) terms
,
,
\(y\) terms
,
,
\(z\) terms
,
,
 
Answer variants:
8x
11z
6z
z
12y
5y
7x
12x
9y