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Mathematics 16 Online
OpenStudy (anonymous):

PLEASE LOOK AT THE ATTACTHMENT

OpenStudy (anonymous):

OpenStudy (whpalmer4):

Yes, that looks like a reasonable choice. Multiplying one equation by 7 will give you two equations with a variable with equal magnitude coefficients which are opposite in sign. When the equations are added together, that variable will disappear, leaving an equation in terms of just one variable.

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