# Minus a minus Two minuses in a row make a plus. `5 − (−2) = 5 + 2 = 7` Think: taking away a debt is like giving money. ## Equations `x − (−3) = 8` is the same as `x + 3 = 8` so `x = 5` ## Signs when combining - Same signs multiply → positive: `(−2)×(−3) = 6` - Different signs → negative: `(−2)×3 = −6` > Slow down at double signs. Rewrite `− (− )` as `+` first, then continue. ## Always rewrite double signs before you continue Train your hand: `a − (−b)` → `a + b` `a + (−b)` → `a − b` Do this as a separate written line. Students who “do it in their head” drop a sign. ### Multiply / divide signs - + × + = + - − × − = + - + × − = − - − × + = − Same story for division. ### Debt story You owe ₹2 (that is −2). Someone “takes away” that debt. You are ₹2 richer. 5 − (−2) = 7.