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OpenStudy (anonymous):
x = 2 and y = 5 is a solution of: A. x + 2y = 12 B. x + y = 12 C. 2x + y = 10 D. x - 2y = 10
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hartnn (hartnn):
just plug in x=2 and y=5 in each options
hartnn (hartnn):
example B : x+y = 2+5 = 7 but right side is 12 so B is incorrect
OpenStudy (anonymous):
ok wait
OpenStudy (anonymous):
2+2*5=10 is it A?
hartnn (hartnn):
yes!
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hartnn (hartnn):
2+2*5 = 12
OpenStudy (anonymous):
thanx champ
hartnn (hartnn):
welcome ^_^
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