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11 December, 00:49

Solve each system using elimination.

3x+3y=27

x-3y=-11

9. 2x+4y=22

2x-2y=-8

11. 5x-y=0

3x+y=24

+2
Answers (2)
  1. 11 December, 00:56
    0
    Add those equations together

    1. 4x = 16, x = 4

    2. Multiple the second one by 2

    2x+4y=22

    4x-4y=-16

    6x = 6, x = 1

    3. Add them together

    8x = 24, x = 3
  2. 11 December, 01:07
    0
    In 2, we are asked to solve the systems of equations to solve for the variables using elimination.

    3x + 3y = 27-3 (x - 3y = - 11) 12 y = 60 y = 5 x = 4

    2x + 4y = 22 2x - 2y = - 8 6y = 30 y = 5 x = 1

    5x - y = 0 3x + y = 24 8x = 24 x = 3 y = 15
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