Explore BrainMass
Share

Explore BrainMass

    Solutions to Systems of Linear Equations

    This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!

    Determine if the given ordered pair is a solution to the system:

    12. 2x + y = 5 (4, -3)
    x - y = 1

    22. 4x - y = -2 (-1, -2)
    3x + y = -5

    Solve each system of equations by the graphing method:

    32. x - y = 4
    x + y = 2

    48. -4x + 4y = 4
    y = x + 1

    Solve each system of equations by the substitution method:

    52. 8x + 3y = -14
    -x + 2y = -3

    66. -3x + 2y = 8
    y = 3/2x + 3

    Solve each system of equations by the addition method:

    74. 3x + 5y = 4
    -4x + 2y = -1

    88. 6x + 2y = 8
    2x - y = 6

    © BrainMass Inc. brainmass.com October 9, 2019, 8:32 pm ad1c9bdddf
    https://brainmass.com/math/linear-algebra/solutions-to-systems-of-linear-equations-154579

    Attachments

    Solution Summary

    Linear systems of equations are solved by graphing, substitution and elimination. The solution is detailed and well presented. The response was given a rating of "5/5" by the student who originally posted the question.

    $2.19