Math

posted by .

Could you please show me how to do this?

It says to use the elimination method.

2x-y+2z=-7
-x+2y-4z=5
x+4y-6z=-1

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. math

    Systems of equations can be solved by graphing or by using substitution or elimination. What are the pros and cons of each method?
  2. Algebra

    Solving system of linear equations by using the apropiate method name the method and the x,y coordinates 1)X=4y+8 2x-8y=-3 2)3x-7y=6 elimination method 2x+7y=4 (2,0) 3)5x-2y=12 elimination method 3x-2y=-2 (7,23/2) 4)9x-8y=42 elimination …
  3. MATH

    SYSTEMS OF EQUATIONS CAN BE SOLVED BY GRAPHING OR BY USING SUBSTITUTION OR ELIMINATION. WHAT ARE THE PROS AND CONS OF EACH METHOD?
  4. Algebra II

    How do you solve the linear equations x+y=5 3x-y=3 by use of the Substitution Method?
  5. Math

    Use elimination to solve each system of equations. x+y-2z=10 8x-9y-z=5 3x+4y+2z=-10 I need to figure out what x,y, and z each equal. I must use the elimination method.
  6. math elimination method

    elimination method really confuses me. solve by elimination method 5r -3s = 17 3r + 5s =17 A. solution is ______ (ordered pair, integer or fraction) B. Infinitely many C. No Solution
  7. Math Elimination method

    PLEASE HELP!!!!!!!!!! Solve by the elimination method 6x - 9y= 7.5 7y - 2x= -4.5 Please help!!!
  8. Math Elimination method

    Use the elimination method to solve x+8y= 47 -x + 4y= 13 The solution is (___,___) Thank you
  9. math

    Please solve the system with the elimination method. Explain each step as it is performed. 5y = x 2x - 3y = 7 Would the elimination method have been your first choice to solve this problem?
  10. Algebra 1

    bobpursey, In this problem you helped me with earlier: Solve using any appropriate method. y = 2× - 5, y = ½× + 1 Substitution, substitute for y. 2×-5=½ × + 1 3/2 x=6 x=4 y= 2*4-5=3 How did you choose which method you were going …

More Similar Questions