Question

What is the value of the expression below when w =7 and x = 2?
3w – 4x

Answer 1

13

Explanation:

Substitute the variables given

w=7 &x=2

3(7)-4(2)

21-8

=13

Answer 2

`13`

Explanation:

`w = 7 \: \: \: \: \: \: x = 2 \\ 3w - 4x \\ 3 * 7 - 4 *2 \\ 21 - 8 \\ =1 3`