Category: Category 4
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Mathematics is not only a subject in school that gives many people headaches. Nor is it a bunch of numbers, which are there without order or law. Mathematics is a special world in which some completely different laws rules – De Morgan’s laws, Pythagorean theorem, laws of algebra, tautology etc. Walking with me in this…
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Equations with two variables can be solved when we have at least two different equations involving those variables. This is because having two equations allows us to find the values of both variables. There are two common methods to solve such systems: substitution and elimination (also called opposite factors). In the substitution method, we solve…