Question

Write the following using algebraic notation, using the letter x for any unknown numbers:

i think of a number, halve it, then subtract four.

Answer 1

1/2x-4

Explanation:

Since we don't know the number (unknown) we simplify it as a variable, x.

Then since you're taking half of x, place 1/2 next to x. Finally subtract 4, and it concludes to 1/2x-4.