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Class 7 maths · N.9 · Simplify expressions

Subtract linear expressions

Remove the parentheses, then combine like terms. Write the answer as ax + b.

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  1. Simplify: (5x − 1) − (x + 5). Write your answer as ax + b.

    Answer: 4x - 6

  2. Simplify: (4x − 2) − (−4x + 4). Write your answer as ax + b.

    Answer: 8x - 6

  3. Simplify: (−x − 5) − (−5x + 5). Write your answer as ax + b.

    Answer: 4x - 10

Tip: Remove the parentheses, then combine like terms. Write the answer as ax + b.

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