The concept of linear equation can be used to find the age of Kaylee. The age of Kaylee is 9 years at present.
Given information:
One-third of Kaylee's age increased by 12 is equal to twice her age decreased by 3.
Let her age be x.
According to the given condition, a mathematical expression can be created as,
[tex]\dfrac{1}{3}\times x+12=2x-3[/tex]
Solve the above equation for x to get the age of Kaylee as,
[tex]\dfrac{1}{3}\times x+12=2x-3\\\dfrac{x}{3}+12=2x-3\\\dfrac{5x}{3}=15\\x=9[/tex]
Therefore, the age of Kaylee is 9 years at present.
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https://brainly.com/question/4540197
