Question

solve $c - (-3) = 15$.
$c = $
(lesson 5 - 15)

Explanation:

Step1: Simplify the left - hand side

Recall that subtracting a negative number is the same as adding its positive counterpart. So, \(c-(-3)=c + 3\). The equation becomes \(c + 3=15\).

Step2: Solve for \(c\)

To isolate \(c\), we subtract 3 from both sides of the equation. Using the subtraction property of equality, if \(c + 3=15\), then \(c+3 - 3=15 - 3\).
Simplifying both sides, we get \(c=12\).

Answer:

\(12\)