Reann has stickers. She gives her friend half, and then her brother gives her 8 new ones. She ends up with 12 stickers. How many did she start with? Identify the operations needed to solve this problem
To solve this problem, we need to perform two operations: dividing by half and adding.
Let's suppose Reann started with "x" stickers.
Operation 1: Dividing by half
After giving her friend half, Reann is left with x/2 stickers.
Operation 2: Adding
Next, her brother gives her 8 new stickers, so Reann now has x/2 + 8 stickers.
Given that she ends up with 12 stickers, we can set up the equation as follows:
x/2 + 8 = 12
To determine the value of "x", we need to solve this equation by isolating "x" on one side:
Subtracting 8 from both sides:
x/2 = 12 - 8
x/2 = 4
Multiplying both sides by 2 to eliminate the fraction:
2 * (x/2) = 2 * 4
x = 8
Therefore, Reann initially started with 8 stickers.