3 years ago

Adam is 12 years old. His sister Linda is one year less than 3 times his age. What is Linda’s age?

Mathematics

1 answer:

Len [333]3 years ago

4 0

3a - 1 = 12
+1 +1
—————-
3a = 13
—- ——
3 3
—————
A=4 1/3

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