Elmination
 SolvingSystems of EquationUsingELIMINATION abcdeSolving Systems by Using Elimination!Put the steps in the correct order!Then add the two equations together. One of the variables should be eliminated!Write the ordered pair!  It's your ANSWER!Take that answer and plug it back intoone of the original equations to find the other variable.Solve for that variable.Make sure one of the sets of variables has opposite coefficients.You may have to multiply one or both equations by a number to make this happen.e, a, c, d, ed, a, e, c, bd, c, a, e, be, c, a, d, b 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 After multiplying the second equation by -3,  what does the second equation look like?{3x - 4y = -1x - 6y = -5-3x - 18y = -5-3x + 18y = -5-3x + 18y = 15-3x - 18y = 15 Solve this system.{3x - 4y = -1x - 6y = -5(     ,     ) {Solve.3x - y = 115x + 3y = 9(     ,     ) Sometimes, you must multiply both equations in order to get "opposite variables".Multiply as indicated:3(-2x + 7y = -8){2(3x - 2y = 12)-2x + 7y = -83x - 2y =  12 +Solve for y.  -6x + 21y = -246x -    4y =  24the x-coordinate isthe y-coordinate isThen solve for x. {-3x + 5y = -16Solve.-5x - 4y = -2(     ,     ) Solve.{-6x + y = 112x + 3y = 13(     ,     ) {Solve.6x + 4y = 6x - 4y = -13(     ,     ) Solve.{-2x - 4y = -122x + 3y = 9(     ,     ) Solve.{(     ,     )2x - y = 6x + 4y = 12 Is (5, -2) a solution of{3x + 4y = 7x - 2y = 9YesNo?
Students who took this test also took :

Created with That Quiz — the site for test creation and grading in math and other subjects.