We have hundreds of course questions with personalized recommendations + Account 100% premium
Let's write the expression as a fraction:
We'll reduce between the x in the numerator and denominator and get:
\( 100-(5+55)= \)
Writing as makes it easier to see what cancels. The fraction form clearly shows the numerator and denominator.
Yes, but be careful! You can only cancel variables that appear as factors (being multiplied), not as terms (being added or subtracted). In , x is a factor in both parts.
Great question! If , then the original expression becomes , which is undefined. We assume for this problem.
Many students think , but that's incomplete cancellation! When you cancel the x's, you get , not 1. The y stays in the denominator.
Multiply your answer by the original divisor: . Since you get back to x, your answer is correct!
Get unlimited access to all 18 Commutative, Distributive and Associative Properties questions, detailed video solutions, and personalized progress tracking.
Unlimited Video Solutions
Step-by-step explanations for every problem
Progress Analytics
Track your mastery across all topics
Ad-Free Learning
Focus on math without distractions
No credit card required • Cancel anytime