anonymous
  • 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? 330 510 520 660
Mathematics
schrodinger
  • schrodinger
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anonymous
  • anonymous
would it be B??
inkyvoyd
  • inkyvoyd
x+y=840 3x+2y=870

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