It’s obvious. X Delmar practiced more
20x+50=450
-50 -50
20x=400
Divide both sides by 20
X=20
Answer:
D
Step-by-step explanation:
The rest you can elimate because of obvious inferring and reasoning so process of elimination
Xy=6b
/y . /y
x=6by
that is the answer because there is no true answer
