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Posted by clary on Sunday, May 27, 2012 at 3:52pm.

Ruby is 10 years older than Sam. The sum of their ages is 52. How old is Sam?

s = Sam's age s + s + 10 = 52 2s = 42 s - 21

s=sams age s+s+10=52 2s=-10+52 2s=42 s=42/2 S=21

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