Use an addition property to solve for a.
10 + (–15) = –15 + a
Question 5 options:
–25
–10
–5
10
To solve for 'a', you can use the addition property to rearrange the equation.
Given: 10 + (-15) = -15 + a
First, combine the numbers on each side of the equation:
-5 = -15 + a
Next, isolate 'a' by subtracting -15 from both sides:
-5 + 15 = a
Simplifying,
10 = a
Therefore, a = 10.