Show ALL work or explain in details the correct solution: How is the sentence "9 less than x is –1" written as an equation?
I know the answer is x – 9 = –1. I need help with the "Show ALL work or explain in details the correct solution" part.
"less than" indicates a subtraction. For example, 3 is 6 less than 9: 9-6
So,
9 less than x ... x-9
"is" ... =
get it now?
I do. Thank you very much oobleck!
To write the sentence "9 less than x is –1" as an equation, we need to understand the meaning of the expression "9 less than x."
The statement implies that we need to subtract 9 from x. Mathematically, when we subtract 9 from a variable, we use the notation "-" to indicate subtraction. So, "9 less than x" can be written as x - 9.
According to the sentence, "9 less than x is -1." This means that the value of x - 9 is equal to -1. To represent this mathematically, we use the "=" sign, which denotes equality. Therefore, the complete equation is:
x - 9 = -1
This equation represents the relationship described in the sentence "9 less than x is –1."