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OpenStudy (anonymous):
The three Math Idol judges have been eliminating contestants all day! The number of one-step equations and two-step equations who have been eliminated today is equal to 840! If three times the number of one-step equations minus twice the number of two-step equations is equal to 870, how many one-step equations auditioned today?
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OpenStudy (lalaly):
x+y=840 3y-2x=870
myininaya (myininaya):
one step equations=o two step equations=t we have o+t=840 and 3o-2t=870
OpenStudy (anonymous):
90? "/
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