Can you please help me solve:
Fifteen less than twice some number is 115.
15 - 2x = 115
is this the correct equation?
thank you
Nope,
10 less than 30 is 30-10, not 10-30.
So, you have 2n and then 15 less than that is
2n - 15 = 115
Thank you Steve!
To solve the problem "Fifteen less than twice some number is 115," you need to set up an equation and then solve for the unknown number.
Your equation, 15 - 2x = 115, is not correct. Let me explain how to correctly set up the equation.
The first step is to identify the unknown number. Let's call it "x."
The phrase "twice some number" means 2 times the unknown number, which can be written as 2x.
The phrase "fifteen less than" implies subtraction, so it is 15 - 2x.
The result is equal to 115, so the equation becomes: 15 - 2x = 115.
Now that you have set up the equation correctly, you can proceed to solve for x.
To solve this equation, you want to isolate x on one side.
Step 1: Subtract 15 from both sides of the equation:
15 - 2x - 15 = 115 - 15
-2x = 100
Step 2: Divide both sides of the equation by -2 to solve for x:
-2x / -2 = 100 / -2
x = -50
So the solution to the equation is x = -50.
I hope this explanation helps you solve the problem correctly. If you have any more questions, feel free to ask!