Simultaneous equations
Extension topicSolve pairs of simultaneous equations using substitution, elimination and graphical methods. Apply these techniques to real-world problems.
Algebra · MA5-EQU-P-01
Sub-topics
Substitution method
Solve simultaneous equations by substituting one equation into the other. Works best when one equation is already solved for a variable.
Elimination method
Solve simultaneous equations by adding or subtracting the equations to eliminate one variable. When coefficients don't match, multiply one or both equations first.
Word problems
Set up and solve pairs of simultaneous equations from real-world problems. The key skill is translating the words into two equations, then choosing the most efficient method to solve them.