It's 0 because 10+10 = 20 then subtract 20 and you get zero.
Answer:
4
Step-by-step explanation:
=
=4
Answer:
45
Step-by-step explanation:
use quizzes and type line plot and your question it helps alot
Answer:
x=21.
Step-by-step explanation:
First you distribute 3 to the parenthesis. You should get 3x-21=42 at this point. Then you add 21 to 42 to get 63. Here you should be at 3x=63. Divide 63 by 3 to get x=3