Question

If I was asked to think of a number and multiply it by 2, I could

write this algebraically as 2x.
Write the following algebraically, using x as your unknown.
"I think of a number, multiply it by 2, subtract 3 and multiply the result by 4."

Answer 1

8x-12

Explanation:

(2x-3)* 4 = 8x-12

Answer 2

4(2x - 3) is how I would write it algebraically.

Explanation:

The number is x, as it is unknown. 2x means you multiply the unknown number by 2.

2x

Now, you subtract 3.

2x - 3

And then you multiply the result of that by 4, hence the parentheses.

4(2x - 3)

To solve, just distribute 4. 4*2x = 8x. 4*-3 = -12.

8x - 12