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tankabanditka [31]
3 years ago
6

The sum of 12 and a certain number is equal to the product of 3 and the number

Mathematics
1 answer:
german3 years ago
3 0

Answer:

Read the explanation!

Step-by-step explanation:

<em>Let the "certain number" be </em>x<em>. </em>

(* is a symbol for multiplication).

<em>Create a few equations and expressions:</em>

The sum of 12 and a certain number: 12 + x

The product of 3 and the number: 3 *x = 3x

The sum of 12 and a certain number is equal to the product of 3 and the number:

12 + x = 3x

Solve!

12=3x-x

12=2x

x=6

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