Answer:
Step-by-step explanation:
Subtract 13 from both sides.
-13
-7 = -20
-2x = -20
Divide by 2 on both sides.
Remember: Negative divided by a negative makes a positive.
-2/-2 = 1
-20/-2 = 10
Your answer:
x = 10
In order to get rid of the fractions, you need to multiply the equation by 12
Answer:
The cost for one pen is A. $1.50
Step-by-step explanation:
