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6 October, 06:06

how to solve equations

3y-2x=11

y+2x=9

+1
Answers (2)
  1. 6 October, 07:55
    0
    3y-2x=11

    y+2x=9

    just plus them

    4y = 20

    y = 5

    put y = 5 in y+2x=9

    5 + 2x = 9

    2x = 9 - 5

    2x = 4

    x = 2

    thus x = 2

    y = 5
  2. 6 October, 08:52
    0
    1. y=9 and x=8

    2. y=-29 and x=20
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