Excel in math, science, and engineering

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How old am I ?

Algebra Level 1

Feliciano is 5 years older than Feliamer , 2 years ago,the sum of their ages was 35 . What is their present age?

22 and 18 22 and 10 22 and 16 22 and 17 20 and 14

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.

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by Son'z Cosino

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