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10-08-2017
Mathematics

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Formulate a system of equations that could be solved by multiplying one equation by 5 and then adding the two equations together to eliminate one of the variables.

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10-08-2017

[tex]\ \ \ 5 \ (-\frac{1}{5} a = 10 - b) \\ + (2a = 5b -20) \\ \\ a = 30[/tex]

5× the first equation + the second equation will give an equation of 'a' to its value.

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