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Solve the system using the substitution method?

x + 3y = 13

3x - 2y = -5

please have the solution with you in answering the equation. thank you and God bless

1 Answer

Relevance
  • 9 years ago

    x + 3y = 13

    ....-3y .......-3y

    ------------------------

    x = 13 - 3y

    3(13 - 3y) - 2y = -5

    39 - 9y - 2y = -5

    39 - 11y = -5

    -39........ -39

    -11y = -44

    y = -44/-11

    y = 4

    x + 3(4) = 13

    x + 12 = 13

    x = 1

    check in other equation

    3(1) - 2(4)

    = 3 - 8

    = -5 check

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