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X = 5, y = 3 is a solution of both equations at the same time, so it is the solution of these simultaneous equations.
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X = 4, y = 2 is a solution of the second equation but not the first. X = 1, y = 7 is a solution of the first equation but not the second. The solution of a pair of simultaneous equation is the values of both variables which make both equations work at the same time.įor example, consider the equations: x + y = 8 and x y = 2. Simultaneous equation questions have two equations, both of which have two unknown variables. Remember that you are NOT allowed to use calculators in this topic. find the values which satisfy both of two inequalitiesĮach topic is introduced with a theory section including examples and then some practice questions.Īt the end of the page there is an exercise where you can test your understanding of all the topics covered in this page.solve linear inequalities and represent the solution on a number line.solve simultaneous linear equations by substitution.solve simultaneous linear equations by elimination.Section 3: Equations and Inequalities Introduction