anonymous
  • anonymous
The equations –a – 7b = 14 and –4a – 14b = 28 represent a system of linear equations. Which statement correctly explains how to eliminate the variable b when solving the system of equations? a.Multiply the first equation by –2 and add it to the second equation. Then solve the resulting equation, –2a = 0. b.Multiply the first equation by 2 and add it to the second equation. Then solve the resulting equation, –2a = 0. c.Divide the second equation by –4 and add it to the first equation. d.Divide the second equation by 4 and add it to the first equation.
Mathematics
schrodinger
  • schrodinger
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