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20 May, 19:11

Use the combination method to solve for y: 5x + 3y = 12 and - 5x + 4y = 16

y = 4

y = 0

y = - 10

y = - 4

+4
Answers (1)
  1. 20 May, 19:35
    0
    y = 4

    Step-by-step explanation:

    We have,

    5x + 3y = 12 ... (1)

    and

    -5x + 4y = 16 ... (2)

    Adding equation (1) and (2),

    0 + 7y = 28

    or

    7y = 28

    Dividing both sides by 7,

    y = 4

    So, the value of y = 4.
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