Tim Gan Math
Sign up free

Choosing a method and checking

Choosing a method and checking

Secondary 2

For each pair of simultaneous equations, choose the substitution method or the elimination method and give a reason for your choice. Then solve the equations and check your answer in both equations.

  1. \(x=4-3y\) and \(2x+5y=7\)
  2. \(3x+4y=2\) and \(5x-2y=12\)

Solution:

Solution locked

680+ questions here come with free worked solutions. A free account saves your questions and progress; this one needs a course plan.

Create free accountSign inGet the E Math course · from S$29.98/moE Math tuition

Create a free account to practise similar questions.

Create free accountSign inGet the E Math course · from S$29.98/moE Math tuition
Answer:(a) substitution; \(x=1,\ y=1\) (b) elimination; \(x=2,\ y=-1\)

Need help? Join our E-Maths tuition for O-Level success.

Learn more