Ask Question
26 November, 22:39

X+y=5 8.5x + 10.25y = 46

+3
Answers (1)
  1. 27 November, 00:13
    0
    X+y=5

    8.5x+10.25y=46

    solve for y in the equation x+y=5 to plug into the equation 8.5x+10.25y=46 to find x:

    x+y=5 - - > y=-x+5

    plug - x+5 in for y in the 2nd equation:

    8.5x+10.25 (-x+5) = 46 (distribute 10.25)

    8.5x-10.25x+51.25=46 (collect like terms and solve for x)

    -1.75x+51.25=46

    -1.75x=-5.25

    x=3

    Now plug 3 in for any of the x's to find x, I'm doing the 1st equations cause it's easier:

    (3) + y=5

    3+y=5

    y=2

    y=2 and x=3

    (3,2)
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “X+y=5 8.5x + 10.25y = 46 ...” in 📙 Mathematics if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers