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1 January, 08:43

Solve the linear equation:

x-y=7

0.5x+y=5

+2
Answers (1)
  1. 1 January, 08:48
    0
    Add the equations.

    x-y%2B0.5x%2By=7%2B5

    1.5x=12

    highlight%28x=8%29

    Now use either equation to solve for y.

    8-y=7

    highlight%28y=1%29

    x=8

    y=1
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