Nine less than the product of 2 and a number is 4
Let x be a number. The equation is:
2x - 9 = 4
You can solve if needed.
I believe "less than" means inequality not subtraction.
L's equation is correct
2x=13
x = 6.5
twice the number is 13
What is 9 less than that ?
L is right.
9+4=13
13/2=6.5
So the answer is 6.5
To solve this problem, let's break it down into steps:
Step 1: Let's assume the unknown number is represented by the variable 'x'.
Step 2: The product of 2 and the unknown number can be written as 2 * x.
Step 3: Nine less than the product of 2 and a number can be written as 2 * x - 9.
Step 4: According to the problem, this expression is equal to 4.
Putting it all together, we have the equation:
2 * x - 9 = 4
Now let's solve the equation for 'x':
Step 5: Add 9 to both sides of the equation to isolate the variable term.
2 * x - 9 + 9 = 4 + 9
2 * x = 13
Step 6: Divide both sides of the equation by 2 to solve for 'x'.
(2 * x) / 2 = 13 / 2
x = 6.5
Therefore, the unknown number is 6.5.