SOLUTION: the population of a town is 216000.it was increased by 20% for the first year and decreased by 10% in the next year.what was the population two years ago

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Question 1056523: the population of a town is 216000.it was increased by 20% for the first year and decreased by 10% in the next year.what was the population two years ago
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let +x+ = the population 2 yrs ago
+x+%2B+.2x+=+1.2x+ was population for 1st yr
+1.2x+-+.1%2A%28+1.2x+%29+=+1.08x+
+1.08x+=+216000+
+x+=+200000+
The population 2 yrs ago was 200,000