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Mathematics 21 Online
OpenStudy (anonymous):

Solve 3x – 5y = 17 9x – 15y = –4 (–1, –4) (4, –1) No Solutions Infinitely Many Soluti

OpenStudy (luigi0210):

multiply the top by -3 and tell me what you get

OpenStudy (anonymous):

-12+-15=13

OpenStudy (rmrjr22):

(3x-5y =17)*3

OpenStudy (rmrjr22):

in this way you can cancel out a variable such as x or y to get one of them alone

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