If 40 − 2x = 4, what is the value of 3x?

54

Explanation:

To find 3x, solve for x.

40 - 2x = 4

Subtract 40 from each side.

-2x = -36

Divide both sides by -2.

x = 18

Now, multiply both sides by 3 to find 3x.

3x = 54

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