Answer:
x = 1/5
Step-by-step explanation:
Step 1: Add 9 to both sides
80x = 16
Step 2: Divide both sides by 80
x = 16/80
Step 3: Simplify by dividing top and bottom by 16
And we have our final answer!
80x - 9 = 7
Add 9 into both sides.
80x = 7 + 9
Divide 80 into both sides.
Simplify.
