Substitution/Elimination
 SolvingSystems of EquationUsingELIMINATION SolvingSystems of EquationsUsingSUBSTITUTION First, make sure that one set of variables has opposite coefficients.Fill in all the blanks, then press "ok"{(-4) + 5y = 1-2x - 5y = 11-x + 5y = 1y = answer+-2x - 5y = 11-x + 5y = 1(   ,    )x = = 12 Solve{ -2x + 2y = 84x - 2y = 6Answer(     ,     ) Sometimes, you will have to multiply one of  the equations by a number to get one set of "opposite variables."{What should you multiply the second equationby to make the x variable "opposite variables?"3x - 4y = -1x - 6y = -5-63-3-4 Solve this system.{3x - 4y = -1x - 6y = -5(     ,     ) {Solve.3x - y = 115x + 3y = 9(     ,     ) Solve.(     ,     ) Solve.(     ,     ) +Solve for y.  -6x + 21y = -246x -    4y =  24the x-coordinate isthe y-coordinate isThen solve for x. Is (5, -2) a solution of{3x + 4y = 7x - 2y = 9YesNo? Is (-1, 4) a solution of this system?YesNo Solve.(         ,         )
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