The difference of a number times 3 and 6 is equal to 7 . Use the variable w for the unknown n

The difference of a number times 3 and 6 is equal to 7 . Use the variable w for the unknown number.

The phrase a number uses the variable w.
3 times w is written as 3w

The difference of 3w and 6 is written as 3w - 6

Set this equal to 7
3w - 6 = 7

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