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19 February, 02:39

Given that 5x-2y = 9 and 3x-2y = 7, find x.

a) - 2

b) - 1

c) 1

d) 4

+2
Answers (2)
  1. 19 February, 02:50
    0
    C

    Step-by-step explanation:

    Given the 2 equations

    5x - 2y = 9 → (1)

    3x - 2y = 7 →) 2)

    Multiplying (2) by - 1 and adding to (1) eliminates the term in y

    - 3x + 2y = - 7 → (3)

    Add (1) and (3) term by term

    (5x - 3x) + ( - 2y + 2y) = (9 - 7), that is

    2x = 2 (divide both sides by 2)

    x = 1 → C
  2. 19 February, 03:19
    0
    (c) 1 will be the correct answer
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