Question

Evaluate -7a – 2b, if a = -1 and b = 2.

Answer 1

Plug in a and be into the equations:

- 7( - 1) - 2(2) = \\ 7 - 4 = \\ 3

Answer 2

Plug in a and be into the equations:
$- 7( - 1) - 2(2) = \\ 7 - 4 = \\ 3$