Question

Twice the difference of a number and 5 is equal to 9.

Use the variable w for the unknown number.​

Answer 1

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Explanation:

Answer 2

n = 19/5

Explanation:

2(n - 5) represents "twice the difference of a number n and 5" and is equal to 9:

2(n - 5) = 9.

Performing the multiplication:

2n - 10 = 9, and so

2n = 19, or n = 19/5