Amy and Stephanie were playing a number game. Amy picked a number and told Stephanie that if she added 9 to the number and multi

Question

3 years ago

5

plied the sum by 3, it would equal 12. Which equation could Stephanie use to find the number, x?

1 answer:

Naya [18.7K] · Answer 1 · 2022-07-08T16:12:54+03:00

3(x+9)=12 can be used by Stephanie to find the number.

Step-by-step explanation:

Given,

x be the number Amy picked.

She told Stephanie to add 9, therefore,

x+9

Multiplying the sum by 3

3(x+9)

According to given statement, the sum would equal 12 after multiplying,

3(x+9)=12

3(x+9)=12 can be used by Stephanie to find the number.

Keywords: linear equations, addition

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