match each expression with its value if x = -3.

1.
21

2.
9

3.
-12

4.
-18

a.
6x

b.
4x

c.
-3x

d.
-7x

For this case we have the variable :

Now, matching each expression with its value we have:

A goes with 4

B goes with 3

C goes with 2

D goes with 1

A goes with 4

B goes with 3

C goes with 2

D goes with 1

she gotta workk that a 2

step-by-step explanation:

b.-4 units

all you   do is count how many times you move