Question

$simplify \: \: the \: \: following$

15 + y - y

$please \: \: the \: \: full \: \: sum$

​

Answer 1

$\textbf{Question:}$

$\textbf{Simplify the following}$

$\textbf{15 + y - y}$

$\textbf{Answer:}$

$\green{15}$

$\textbf{Explanation:}$

$\textbf{Step 1:}$

$\textbf{Since two opposite add up to zero, remove them from the expression}$

$\textbf{Why?}$

$\textbf{Learn why}$

$\textbf{Why do two opposite add up to zero?}$

The Inverse Property of Addition states that two opposite add up to 0

Since adding or subtarcting 0 doesn't change the value of the expression, we can just remove it

$\textbf{Step 1:}$

$\textbf{Example:}$

$\textbf{Since -5x is the opposite of 5x, their sum is 0}$

$\textbf{7 + 5x + (-5x) = 7 + 0}$

Adding 0 won't change the value, so we can remove it

${7 +5x + (- 5x) = 7}$

So now you know let's go back to solving as i said since two opposite add up to zero, remove them from the expression

${15}$ $\red{+ y - y}$

$\green{\textbf{15}}$ ✓

$\textbf{Hope this helps!}$ :)

Answer 2

$\large\bf{\underline\red{Good \: Afternoon♡}}$

15 + y - y

15

keep smiling ❣️