algebra

posted by .

solve the system by the elimination method
5x+5y=-7
7x-3y=19

  • algebra -

    Rewrite as:
    15x + 15y = -21 and
    35x - 15y = 57

    Now add them. The y terms cancel.
    50 x = 36
    x = 36/50 = 18/25

    (90/25) + 5y = -7 = -175/25
    5y = -265/25
    y = -53/25

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Math

    Solve by eliminnation methods 2x-4y=5 2x-4y=6 solve the system by elimination method 5x+2y= -13 7x-3y=17 Solve x+6<-7 or x+6>4 Determine whether the given numbers are solutions of the inequality 8,-10,-18,-3 y-8>2y-3 Solve …
  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. Algebra

    Solve by elimination method. 7r-3s=14 3r+7s=64 Could never figure out the elimination method. Would love some help with this one. Thanks
  4. MaTh = Algebra = help

    Solve this system of linear equaiton by an algebraic method. So If I had to solve this the elimination method way, how would I do it?
  5. Algebra/Elimination method

    Solve using the elimination method. If the system has no solution or an infinite number of solutions, state this. -27x - 18y = -180 9x + 6y = 60
  6. algebra

    solve the elimination method 7r-3s=0 3r+7s=58 what is the solution of the system
  7. Algebra....HELP!!

    Solve the elimination method 7a + 6b = 3 -7a +b = 25 The solution of the system is?
  8. algebra

    how do you Solve the following system using the elimination method: 2x - 4y = 2 -4x + 6y = -4
  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