This math topic focuses on solving systems of linear equations by adding or subtracting multiples of one equation to another to create a single, solvable equation. It addresses introductory algebra concepts related to manipulating equations to isolate variables and find solutions. Each problem presents a pair of simultaneous equations with specific instructions to combine them, streamlining the system into one equation that can be solved for the variable of interest. The issues also provide multiple possible numerical answers to reinforce the concept of checking solutions within the context of linear equations.
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Add or subtract multiples of the second equation to the first equation to form a single solvable equation