Mathematics for IGCSE & O level - Algebraic Manipulation (Section 7 - No. 19)

Which rule is used when simplifying algebraic expressions?

Collect only the prime terms and all the negative terms separately.

Multiply by the negative numbers.

Collect all the positive terms and all the negative terms separately.

Multiply each term by one.

To simplify algebraic expressions, you collect all positive terms and all negative terms separately and add up each term and find the difference.