The system ⎧⎩⎨a2+b2−c2=05a−b=ca+b+c=30{a2+b2−c 2=05a−b=ca+b+c=30 has exactly one solution. find the solution by using substitution. enter your answer as an ordered triple in the format (aa, bb, cc), like this: (42, 53, 64)