SOLUTION: lisa is 12 years old which is 21 years younger than 3 times lauren’s age. how old is lauren

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Question 1170162: lisa is 12 years old which is 21 years younger than 3 times lauren’s age. how old is lauren
Answer by MathLover1(20849) About Me  (Show Source):
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Lisa is 12+years old
which is 21 years younger than 3 times Lauren’s age x
12=3x-21
12%2B21=3x
33=3x
x=11

Lauren is 11 years old