The RESULTANT.....

Algebra Level 2

Tushar wrote a two digit number. He added 5 to the tens digit and subtracted 3 from the units digit of the number. The resulting number is twice the original number. Find the original number ?

Excel in math and science

Master concepts by solving fun, challenging problems.

It's hard to learn from lectures and videos

Learn more effectively through short, conceptual quizzes.

Our wiki is made for math and science

Master advanced concepts through explanations, examples, and problems from the community.

Used and loved by 4 million people

Learn from a vibrant community of students and enthusiasts, including olympiad champions, researchers, and professionals.