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lutik1710 [3]
3 years ago
10

6th grade math :) help me please!

Mathematics
1 answer:
yuradex [85]3 years ago
8 0

Answer:

  1. b) 7r +r +2
  2. d) 3u +1 +7y

Step-by-step explanation:

Identify the variable in each term. If two or more terms have the same variable, they are "like" terms.*

1) Like terms are found in selection b. They are 7r and r.

__

2) The variables in selection d are u and y, not the same. Only unlike terms are found in selection d. (Selection b has variables x, b, x. The x-terms are like terms and can be combined.)

_____

* Strictly speaking, it is the constellation of variables you want to match. For example, terms 3xy, 4xy², and -5x²y all have variables x and y, but the powers of those variables don't match from term to term. For terms to be "like", the variables and their powers need to match.

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