Step-by-step explanation:
Hi,
Since there are multiple scenarios, lets first discuss the rules of developing expressions.
- Any unknown value can be assumed as a variable.
- An increase means addition and decrease means subtraction.
Using these rules we can develop the following expressions:
- [tex]x - 6[/tex], where [tex]x[/tex] indicates the total number of pencils Naomi had.
- [tex]y + 6[/tex], where [tex]y[/tex] represents the number of coins Sydney had initially.
- [tex]z - 6[/tex], where [tex]z[/tex] refers to the total number of stickers Benjamin had.
- [tex]6 - a[/tex], where a is the number of servings decreased.
- [tex]b + 6,[/tex] where b is the number of schools in Eastville.
- [tex]6 - c[/tex], where c indicates the amount of time Gabrielle reduces.
Tip:
In addition, the order of number doesn't matter however this is not the case in subtraction.