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22 February, 04:13

Solve the system of linear equations by graphing

X+y=7

-x+y=-7

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Answers (1)
  1. 22 February, 07:15
    0
    Subtract x from both sides of the equation.

    y=7-x

    -x+y=-7

    Add x to both sides of the equation.

    y=7-x

    y=-7+x

    Create a graph to locate the intersection of the equations. The intersection of the system of equations is the solution.

    (7,0)
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