vladyaniznatera vladyaniznatera

14-04-2021
Mathematics

contestada

12 + 3y = 21
Expression or Equation:

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Аноним Аноним

14-04-2021

It is an equation because it has an equal sign. Whereas an expression does not have an equal sign.

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mariastart0ner mariastart0ner

14-04-2021

Answer:

equation

Step-by-step explanation:

12 + 3y = 21

-12. -12

__________

3y = 9

y = 3

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