exam
Maths Puzzle
Numerical Ability
14s+36=-6s
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exam Other Question
In three years, Alex will be 3 times as old as Precy.
A year ago, Alex was 7 times as old as Precy. How old are they now?
identify three methods you can use to solve a system of equations and explain when to use each method. write example systems that illustrate when to use each method