EMBook 

This free collection of tests in arithmetic, pre-algebra, algebra, trigonometry, hyperbolic trig and calculus offers step-by-step solutions together with extensive reference material and interactive training technique.
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EMTask Algebra Equations 

37988 algebraic equations with solutions and test authoring options. Enables creation of math tests, homeworks, quizzes and exams of varied complexity in a minute. Generates three variant tests around a constructed example. Includes basic and advanced algebra problems.
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