When 8 is added to a certain number and the sum is multiplied by 3, the result is 57. Find the number.

1 answer:

3 0

Answer:

The number is 11.

Step-by-step explanation:

$3(8+x)=57\\24+3x=57\\3x=33\\x=11$

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When 8 is added to a certain number and the sum is multiplied by 3, the result is 57. Find the number.​