Mr. pham wrote the equation below on the board.

18-7x=-20.5

what is the value of x?

a. -5 1/2
b. -5/14
c. 5/14
d. 5 1/2

18 - 7x = -20.5

Subtract 18 from each side:

-7x = -38.5

Divide both sides by -7:

x = -38.5 / -7

x = -5.5 = 5 1/2

The answer is D.

D. 5 1/2

Step-by-step explanation:

18-7x=-20.5

Subtract 18 from each side

18-18-7x=-20.5-18

-7x = -38.5

Divide each side by -7

-7x = -38.5/-7

x =5.5

In fraction form

x = 5 1/2

-4, -2, 1, 4

step-by-step explanation:

domain = x values

range = y values

see below

step-by-step explanation:

x+2> 6

subtract 2 from each side

x+2-2 > 6-2

x > 4

there is an open circle at 4 since is it is greater than and the line goes to the right