How to change percent using algebra @bprpmathbasics

Uploaded August 2026 | Updated September 2026, 2 weeks ago

In a room of 80 people, 90% are left-handed. How many left-handed people must leave the room to bring that percentage down to 68%?

Here's the original 1 percent club question: youtu.be/U6emQxf-cxY?si=ms9tpZjhsl0NpKai
------------------
I help students master the basics of math. You can show your support and help me create even better content by becoming a patron on Patreon 👉 patreon.com/blackpenredpen.
Or shop for math t-shirts & hoodies 👉 amzn.to/3qBeuw6
Every bit of support means the world to me and motivates me to keep bringing you the best math lessons! Thank you!
------------------
#math #algebra #mathtutorials

Is this even possible? Maybe theres a missinformation in the problem? Reddit r/theydidthemath

How to solve basic trigonometric equations with inverse and a calculator

Can anybody help me solve this polynomial inequality? Reddit r/askmath

When you have both factorial and termial

How to solve a hard cubic equation with a nice trick!

University of Oxford Math Admission Test: Can you find a_10?

Adding log(5)+log(5), know the logarithm properties

$You probably would get this wrong if they didnt give you the answer choices (SAT math problem) We are going to see which of the following is equivalent to (y+12)/(x-8) + y(x-8)/(x^2y-8xy). This is an example of adding algebraic fractions, a type of problem that often scares many students. This is a question from the official SAT practice test by the College Board https://satsuite.collegeboard.org/media/pdf/sat-practice-test-9-digital.pdf I help students master the basics of math. You can show your support and help me create even better content by becoming a patron on Patreon 👉 https://www.patreon.com/blackpenredpen. Get your algebra t-shirt 👉 https://amzn.to/3A8Ed4k Every bit of support means the world to me and motivates me to keep bringing you the best math lessons! Thank you! #math #algebra #mathtutorials$

Solving a quadratic equation by completing the square (with complex solution)