x +15 = 4x
15 = 3x
x=5
Your present age is 5
x - present age
x + 15 = 4 x 3 x = 15 x = 5
Your present age is 5 years old. In 15 years, you will be 20 years old, which is four times your current age. We've solved the relationship through a simple mathematical equation.
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