SOLUTION: Shirley is x years old. Mike is 2 years older than Shirley. 8 years ago Mike was twice as old as Shirley. Work out Shirleys age.

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Question 675340: Shirley is x years old.
Mike is 2 years older than Shirley.
8 years ago Mike was twice as old as Shirley.
Work out Shirleys age.

Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

Shirley++=+x
Mike+=+x%2B2...........
8 years ago:
Shirley=+x-8+
+Mike+=+2%28x-8%29

x-8+=+2%28x-8%29...solve for x
x-8+=+2x-16
16-8+=+2x-x
x+=+8...........Shirley's age
+x%2B2=10....Mike's age