3 years ago

The quotient of nine less than 3 times a number and four is 21how to translate into a sentence

1 answer:

8 0

Hello,

Let's assume n the number searched.

nine less 3 times n is written 9-3n

$\dfrac{9-3n}{4} =21\\
==\ \textgreater \ 9-3n=84\\
==\ \textgreater \ -3n=75\\
==\ \textgreater \ n=-25

$

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