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22 December, 18:07

Use substitution to solve the system.

y = 2x - 4

5x+2y = 1

x=

y=

+2
Answers (1)
  1. 22 December, 18:15
    0
    y = 2x - 4

    5x+2y = 1

    substitute y = 2x - 4 into 5x+2y = 1

    5x+2y = 1

    5x+2 (2x - 4) = 1

    5x + 4x - 8 = 1

    9x = 9

    x = 1

    y = 2x - 4 = 2 (1) - 4 = - 2

    answer

    x = 1 and y = - 2
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