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13 April, 23:18

Y=-x/2-10

-2x-y=5

substitution

+1
Answers (1)
  1. 13 April, 23:45
    0
    Put 1st equation into second

    -2x - (x/2 - 10) = 5

    -2x - 1/2x + 10 = 5 combine like terms

    -2.5x + 10 - 10 = 5 - 10

    -2.5x = - 5 divide both sides by 2.5

    x = 2
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