Question

(18 – ab) + 4b
If a = -2 and b = -5

Answer 1

-12

Explanation:

First, substitute the variables with the numbers.

(18-(-2*-5))+4(-5)

Using the order of operations, solve in the parentheses before anything else.

(18-(-2*-5))+4(-5)

(18-(10))+4(-5)

We can now multiply 4 by -5.

(18-(10))+4(-5)

(18-10)-20

It's probably easier if we subtract 10 from 18 before subtracting 20.

(18-10)-20

8-20

-12

Hope this helps you out!! Have a wonderful day c:

Answer 2

Answer:

(18-(-2*-5))+4(-5)

(18-10)+(-20)

8+(-20)

-12