Question 994181
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x=years until mother is 1.5 times daughters age
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21+x=1.5x
21=0.5x
42=x . It will be 42 years until mother is 1.5 daughter's age
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21+42=63 Mother will be 63 when she is 1.5 daughter's age.
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CHECK:
When mother is 63, daughter is 42:
63=(1.5)(42)
63=63