One half of the opposite of a number is five less than twenty.

Answer: - 1/2x = 20-5

Step-by-step explanation:

Hi, to answer this question we have to write an expression with the information given:

One half of the opposite of a number; a number is the variable (x), the opposite is - x, and one half of that number is equal to the number multiplied by 1/2. (-1/2x)

Is five less than twenty: the previous expression is equal to 20 minus 5:

Mathematically speaking:

-1/2x = 20-5

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