Asked by Ashley

The apartment building where Herman lives was built 12 years before his grandmother's house. In 4 years, the apartment building will be twice as many years old as Herman's grandmother's house. How many years ago was Herman's grandmother's house built?

Answers

Answered by PsyDAG
If grandma's house = x, then the apartment building = x + 12

x + 12 + 4 = 2(x+4)

Solve for x.
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