Question

Given that a = 5,b = -2,find the value of 2a - 4b

Answer 1

it is so easy why don't you do it by yourself but if you are beginner here it is the answer

Explanation:

2(-2)-4(5)

-4-20

-24

Answer 2

Substitute:

2a-4b

2(5)-4(-2)

=10+8

= 18