Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.

Trending News

Promoted
PATRIOTS
Lv 5
PATRIOTS asked in Science & MathematicsMathematics · 1 decade ago

wat is x and Y?

26y + 2x = 180 and 21y + 3x = 180, then what is x and y in both of them???

3 Answers

Relevance
  • Anonymous
    1 decade ago
    Favorite Answer

    26y + 2x = 180

    13y + x = 90

    x = 90-13y

    21y + 3(90-13y) = 180

    21y + 270 - 39y = 180

    -18y = -90

    y = 5

    back to the first equation

    26(5) + 2x = 180

    130 + 2x = 180

    2x = 50

    x = 25

  • Anonymous
    1 decade ago

    First you multiply both sides of the first equation by 3 and both sides of the second equation by 2. This is to match up the x's so you can eliminate them.

    78y + 6x = 540

    42y + 6x = 360

    Now subtract these equations.

    36y = 180

    y = 180/36 = 5

    Now plug y into one of the equations to find x:

    26(5) + 2x = 180

    130 + 2x = 180

    2x = 50

    x = 25

    x = 25

    y = 5

  • jjmarie058
    Lv 4
    1 decade ago

    what those first two people said ^^^

    haha im too lazy to figure it out

    P.S. What grade are you in? I was learning this stuff in like 7th grade

Still have questions? Get your answers by asking now.