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OpenStudy (anonymous):
Solve the system of equations by substitution method (-5x-15y=9) (5x+15y=0)
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hero (hero):
Rewrite the first equation: 5x + 15y = -9 So now you have: 5x + 15y = -9 5x + 15y = 0 So you know both lines are parallel, therefore, it is not possible to solve the system using substitution method nor any other method.
OpenStudy (anonymous):
Thank you so much.
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