What are some of the things you should look for when trying to determine whether two events are complementary? Why are these things helpful, or important, here?

step-by-step explanation:

first, eliminate the parenthesis:

3

x

+

2

−

4

x

second, group like terms:

3

x

−

4

x

+

2

third, combine like terms:

(

3

−

4

)

x

+

2

→

−

1

x

+

2

→

−

x

+

2

i believe the answer is letter c) 8

step-by-step explanation:

1. perpendicular

2. parallel

3. perpendicular