Question

find the match that makes the equation true. remember, adding a number and its opposite equals zero. -8 + = 0; 8 + = 0; -8; 8

Explanation:

Step1: Solve for first blank

Let $x$ be the missing number.
$-8 + x = 0$
$x = 0 + 8 = 8$

Step2: Solve for second blank

Let $y$ be the missing number.
$8 + y = 0$
$y = 0 - 8 = -8$

Answer:

$-8 + \boldsymbol{8} = 0$
$8 + \boldsymbol{-8} = 0$