hayhay5983 hayhay5983

02-04-2020
Mathematics

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Katalina is solving algebraic expressions for her math homework. She solves the problem 7y -12, when y = 3. Katalina says that the answer is 61. Is she correct? How do you know?

Respuesta :

Sarah06109 Sarah06109

02-04-2020

Answer:

No

Step-by-step explanation:

Substitute 3 in for y

7y-12

7(3)-12

21-12

9

She is not correct, the correct answer would be 9

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