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To eliminate terms from an expression, usually through one of the four basic arithmetical operations, to produce a simplified form. For example, x2+3x−2=x2−2x+8 can be reduced 3x−2=−2x+8 by cancelling x2 from both sides, which is effectively subtracting from both sides. cancelling 5y from numerator and denominator, though care needs to be taken when division is used because the expression derived is conditional on not dividing by zero. In this case provided y ≠ 0.

Subjects: Mathematics.


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