Linear equation word problems — Basic example | Math | SAT | Khan Academy

Watch Sal work through a basic Linear equations word problem.

Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help!

[rvepbsp]

THANK YALL FOR YOUR AMAZING WORK GOD BLESS

[shivanshikasahani]

The question says 'c' number of classes she'll take this YEAR, whereas further it's 19 hours per WEEK. So how can we say that additional hours plus the homework hours for 'c' classes(in the year) is equal to 19 hours(available each week).
Can someone please clarify it?

[shell]

what would it mean if the answer was a and it was -6.5?

[imoneygarcia]

That is the correct answer 2 1/2c+6 1/2=19!!!!

[howwhen]

I totally agree, this video makes a good argument. But I have to rebut by saying that this video is alright. Yeah yeah uh huh.

[rashedulislam]

Lol we can solve itmore than easy approach.