Mr. Pham wrote the equation below on the board. 18 minus 7 x = negative 20.5 What is the value of x?

x = 5.5

Step-by-step explanation:

Step 1: Write out the equation

18 - 7x = - 20.5

Step 2: Subtract 18 on both sides

-7x = - 38.5

Step 3: Divide both sides by - 7

x = 5.5

And we have our final answer!