In 8 years, a girl will be 3 years older than twice her present age. How old is she?
age now = x.
So, in 8 years,
x+8 = 2x+3
x = 5
To solve this problem, you can set up an equation based on the information given. Let's denote the girl's present age as "x".
According to the problem, in 8 years, the girl will be 3 years older than twice her present age. This can be written as:
x + 8 = 3 + 2x
Now, you can simplify the equation by subtracting "x" from both sides:
8 = 3 + x
To isolate "x", subtract 3 from both sides of the equation:
8 - 3 = x
Thus, x = 5.
Therefore, the girl is currently 5 years old.
Let's break down the given information step-by-step to determine the girl's current age:
Let's assume the girl's current age is 'x' years.
According to the given information, in 8 years, the girl will be 3 years older than twice her present age.
So, in 8 years, her age will be: x + 8
And according to the given information, in 8 years, she will be 3 years older than twice her present age. So,
x + 8 = 2x + 3
Now, let's solve this equation step-by-step:
First, let's subtract 'x' from both sides of the equation to isolate the variable:
x + 8 - x = 2x - x + 3
Simplifying both sides, we have:
8 = x + 3
Next, let's subtract '3' from both sides of the equation:
8 - 3 = x + 3 - 3
Simplifying both sides, we have:
5 = x
Therefore, the girl's current age is 5 years old.