3a = a + 18
3a - a = a + 18 - a
2a = 18
2a/2 = 18/2
a = 9 years
Ryan B.
asked 03/27/2118 years from now Adam's age will be 3 times his present age. Find Adam's age now.
3a = a + 18
3a - a = a + 18 - a
2a = 18
2a/2 = 18/2
a = 9 years
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