Translate this sentence into an equation Nine times the diff

Translate this sentence into an equation:

Nine times the difference of a number and 7 is equal to 3.

Use the variable y for the unknown number.

Sol. Difference\" means that we subtract the two numbers. \"Times\" means that we multiply.

\"Use the variable y for the unknown number \" means .

Let y be the number then according to the problem Nine times the difference of a number and 7 is equal to 3.

the difference between the number and 7 is 3 so it can be denoted as (y-7) .

further 9 (y-7) = 3

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