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23 August, 09:15

Solve the system by substitution

6x+2y=26

x=6y+21

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Answers (1)
  1. 23 August, 11:11
    0
    Substitute x = 6y + 21 into the first equation:-

    6 (6y+21) + 2y = 26

    36y + 126 + 2y = 26

    38y = - 100

    y = - 2.63

    x = 6 (-2.63) + 21 = 5.22

    answer (-2.63, 5.22) to nearest hundredth
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