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Tangle Trap Level 1 Hard maths puzzle involving algebra, answer box, expanding brackets and linear equation

Tangle Trap – Level 1 – Hard

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Topics: algebra, answer box, expanding brackets, linear equation, parentheses, polynomials

Untangle the following equation, to find the value of x.

Enter the value of x into the Answer box.

-x² + x(x – 5) – 6x + (x – 6)(x + 1) + (x + 3)² – 6 = x² + 7x + (x – 6)(x + 3) + 1

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Additional instructions for Tangle Trap (Level 1, Hard)

Tangle Trap – Hard

Proof-check finish: if your final answer doesn’t “feel” right, verify equivalence.

  • Pick an easy value like x=0, x=1, and x=2.
  • Evaluate the original expression and your simplified expression.
  • The outputs must match every time.

If they don’t match: the error is almost always in a bracket expansion or a missed sign flip.

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