SOLUTION: Haley is twice as old as billy. The sum of their ages is 36. How old is billy? How old is Haley, and what are the two equations; using substituion method?
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Question 680051: Haley is twice as old as billy. The sum of their ages is 36. How old is billy? How old is Haley, and what are the two equations; using substituion method? Answer by ReadingBoosters(3246) (Show Source):
You can put this solution on YOUR website! h = 2b
h+b=36
...
2b + b = 36
3b = 36
b = years old for Billy
h = 2(12) = years old for Haley
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