Place value is where the number is placed and value is what that place is called
Step Number 1. is to Simplify

Step Number 2. <span>Simplify so you get </span>

Done! :)
Answer:
A number is twice as much when put added by 4 to equal 12
2x+4=12
Step-by-step explanation:
-15u+30
Have a great day! :)