Algebra

posted by .

I need some help solving this system of equations:

5x - y = 18
–4x – 2y = –6

  • Algebra -

    I would use substitution, from the 1st:
    y = 5x-18
    sub into the 2nd:

    -4x - 2(5x-18) = -6
    -4x - 10x + 36 = -6
    -14x = -42
    x = 3
    y = 5(3)-18 = -3

    x=3 , y = -3

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Algebra 2

    1. What is the first step for solving this system by substitution?
  2. Algebra 2

    I need help with this problem because I do not have a graphing calculator. Explain how you would solve this equation using your graphing calculator in five steps then give the solution. 2x- 3y=8 5x+ 4y= 11 Also how do you determine …
  3. Algebra II

    What is the first step for solving this system by substitution?
  4. Algebra - College intro

    I'm having trouble learning "Solving systems of equations by graphing". Can you show me how to do the following problem?
  5. Algebra

    Explain the difference between solving a linear equation graphically and solving a system of equations graphically. How would I go about doing this?
  6. Algebra

    When solving a system of equations by the addition method, how do you know when the system has no solution?
  7. Algebra

    When solving a system of equations by the addition method, how do you know when the system has no solution?
  8. Algebra

    Need help solving the system of inequalities and equations graphically for this problem. Please help! 6y=9(x-6) 3(2y+5x)=-6
  9. Algebra

    I need help Solving the system of equations algebraically and Showing all the steps involved. y=x^2+2x y=3x+20
  10. Algebra

    Create a system of equations that includes one linear equation and one quadratic equation. Part 1. Show all work to solving your system of equations algebraically. Part 2. Graph your system of equations, and show the solution graphically …

More Similar Questions