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Vilka [71]
3 years ago
8

12 + 3y = 21 Expression or Equation:

Mathematics
2 answers:
victus00 [196]3 years ago
5 0
It is an equation because it has an equal sign. Whereas an expression does not have an equal sign.
Tamiku [17]3 years ago
3 0

Answer:

equation

Step-by-step explanation:

12 + 3y = 21

-12. -12

__________

3y = 9

y = 3

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