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2 February, 14:39

Solve for x and y

x+y=1

2y-x=8

+2
Answers (1)
  1. 2 February, 16:14
    0
    ( - 2, 3)

    Step-by-step explanation:

    Given the 2 equations

    x + y = 1 → (1)

    2y - x = 8 → (2)

    Adding the 2 equations term by term will eliminate the x - term

    (x - x) + (y + 2y) = (1 + 8), that is

    3y = 9 (divide both sides by 3)

    y = 3

    Substitute y = 3 into either of the 2 equations and solve for y

    Substituting y = 3 in (1)

    x + 3 = 1 (subtract 3 from both sides)

    x = - 2

    Solution is ( - 2, 3)
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