how do I write an equation for "fifteen decreased by twice n equals 13"
15-(2n)=13
n=1
15^-2=13
To write an equation for the given problem, you need to break it down step by step. The statement "fifteen decreased by twice n equals 13" can be translated into an equation with the following steps:
Step 1: Let's define a variable for the unknown value. Let's say "n" represents the unknown value.
Step 2: The phrase "twice n" means multiplying the variable "n" by 2. So, "twice n" can be written as "2n".
Step 3: The phrase "fifteen decreased by twice n" means subtracting "2n" from 15. So, "fifteen decreased by twice n" can be written as "15 - 2n".
Step 4: Finally, the equation can be stated as "fifteen decreased by twice n equals 13", which can be written as:
15 - 2n = 13
Therefore, the equation representing "fifteen decreased by twice n equals 13" is 15 - 2n = 13.