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OpenStudy (anonymous):
check wheather the ordered pair is a soultion of the system (2,-4) 2x+y=0 -x+2y=10
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OpenStudy (aroub):
not a solution
OpenStudy (anonymous):
no -(2)+2(-4)=10 -2-8=10 -10=10 not true
OpenStudy (anonymous):
thanks
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