Puzzle
AlgebraPuzzle
Code breaker:Simultaneous equations
Thirteen pairs of equations: add or subtract first, then pairs where one equation has to be multiplied. The answer is always x, and every value of y is also in the Code Box. Two per A4.
A free GCSE algebra puzzle with answers, spec code A19. It goes with the lesson on simultaneous equations.
Lesson
Simultaneous equations
More in Equations and inequalities
- Missing numbers: first equationsLesson · Support
- Solving two-step equationsLesson · Support
- Solving two-step equationsLesson · Foundation
- Equations with bracketsLesson · Support
- Equations with bracketsLesson · Foundation
- Equations: the unknown on both sidesLesson · Foundation
- Forming equations from perimeterLesson · Common
- Inequalities on a number lineLesson · Common
- Solving inequalitiesLesson · Common
- Quadratic inequalitiesLesson · Higher
- Algebraic expressions: exam questionsExam questions
- Functions and iterationProblem solving
- Solving one-step equationsWorksheet · Foundation
- Answer chain: two-step equationsPuzzle