Answer: To set up the equation for "9 less than x is equal to 7," we need to use algebraic notation. The phrase "9 less than x" can be written as "x - 9" and the phrase "is equal to" can be represented by the equal sign (=). So, the equation would be:
x - 9 = 7
In this equation, x represents the unknown value we are trying to find. To solve for x, we can isolate it by performing inverse operations. In this case, we want to isolate x by adding 9 to both sides of the equation:
x - 9 + 9 = 7 + 9
This simplifies to:
x = 16
Therefore, the value of x that satisfies the equation "9 less than x is equal to 7" is x = 16.
Step-by-step explanation: hope this helps! :)