Consider the graph showing two functions.

Step-by-step explanation:

The third equation is the correct one; it can be used to find the solution of this system of equations.

       3

0 = + x

        x

... can be rewritten as

       -3

      =  x

        x

The yellow line has the equation y = x, and the curve has the equation

       -3

      =  x

        x

It can be seen directly from the graph that the solution is x = -3 and y = -3, or

(-3, -3)

        x

step-by-step explanation:

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