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11 July, 09:48

Solve the system of linear equations by substitution

x-y=4

2x-3y=3

+1
Answers (1)
  1. 11 July, 10:09
    0
    x=9. y = 5. (9,5)

    Step-by-step explanation:

    x-y=4. Solve for x or y

    +y. + y

    x = 4+y

    2x-3y=3. Substitute

    2 (4+y) - 3y=3

    8+2y - 3y = 3

    8-y = 3

    -8. - 8

    -y = - 5

    -1 (-y = - 5)

    y = 5

    x - y = 4

    x - 5 = 4

    + 5. + 5

    x=9
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