Ronnie is thinking of a number. He says that he gets the same result when he multiplies his number by 2 as when he adds 5 to his number. What is the number?
2 n = n + 5 ?
n = 5
of course now that you mention it, adding a number to itself is kind of like multiplying it by two
if it were six instead of five
6+6 = 12
2*6 = 12
To solve this problem, we can set up an equation.
Let's say Ronnie's number is represented by the variable "x."
According to the information given, we can create two equations:
The first equation represents the result when Ronnie multiplies his number by 2: 2x.
The second equation represents the result when Ronnie adds 5 to his number: x + 5.
Since both equations represent the same result, we can set them equal to each other:
2x = x + 5.
To solve this equation, we can subtract "x" from both sides:
2x - x = x + 5 - x.
This simplifies to:
x = 5.
Therefore, the number Ronnie is thinking of is 5.
To find Ronnie's number, we need to set up an equation based on the given information. Let's call Ronnie's number "x."
According to the problem, Ronnie gets the same result when he multiplies his number by 2 as when he adds 5 to his number. Mathematically, this can be written as:
2x = x + 5
To solve the equation, we need to isolate the variable, which is x.
To eliminate the x on the right side of the equation, we can subtract x from both sides:
2x - x = x + 5 - x
Simplifying this further, we have:
x = 5
Therefore, Ronnie's number is 5.