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| Introduction |
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| A simple linear equation is a statement of equality between two algebraic expressions involving an unknown quantity called the variable. In a linear equation the power of the variable is always equal to 1. The two sides of an equation are called Left-Hand Side (LHS) and Right Hand Side (RHS). They are written on either side of = sign. |
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| The two sides of an equation are like the two pans of a balance. |
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Linear equations in two variables
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