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Chain Reaction – Level 1 – Medium

Other Puzzles

Each answer you find is used inside the next question. Work through the full chain carefully – if you get one wrong, it affects the rest!

Your Workings For Chain Reaction

1) Solve: 7x – 18 = 3x + 26

A =

2) Use your answer from Q1 as “a”. Now solve: 4a – x + 7 = 41

B =

3) Use your answer from Q2 as “b”. Now simplify: (x + 5)(x + b) – what is the coefficient of x?

C =

4) Use your answer from Q3 as “c”. Now solve: 2(x + 4) – c = 33

D =

5) Use your answer from Q4 as “d”. Now factorise: x² – dx + 36

E =

Reveal the Answer

Reveal Answer
Additional instructions for Chain Reaction (Level 1, Medium)

Chain Reaction – Medium

When you get stuck: don’t stare at the whole chain — isolate the current step and make it “normal” again.

  • Write down your known input (e.g. b = 7).
  • Replace the letter in the equation with the number.
  • Simplify until it looks like a standard equation/expression you recognise.
  • Answer exactly what the step asks for, then move on.

Tip: Medium difficulty is mainly about careful handling of algebra, not clever tricks.

Full help: Chain Reaction

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