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7-42.

Solve by graphing. Express your solution algebraically.

Blue Upward V graph, vertex at (0, comma negative 5), with points at (negative 5, comma 0), & (5, comma 0). Red Increasing ray, starting at (negative 5, comma 0), passing through (0, comma 5).

The solution is the value of that makes both of these equations true. Where do the graphs overlap?