1. The problem is to simplify the expression $- + + = -$. 2. This expression appears to be a sequence of signs without numbers or variables, so let's interpret it as a sequence of operations on a number. 3. Typically, $+$ and $-$ signs indicate addition or subtraction, but here they are given without operands. 4. If the question is about simplifying the signs, note that: - Two consecutive plus signs $++$ simplify to a single plus sign $+$. - A plus followed by a minus $+-$ simplifies to a minus $-$. - A minus followed by a plus $-+$ simplifies to a minus $-$. - Two consecutive minus signs $--$ simplify to a plus $+$. 5. Given the sequence $- + + = -$, the left side is $- + +$. 6. Simplify $+ +$ to $+$, so the sequence becomes $- +$. 7. Simplify $- +$ to $-$. 8. Therefore, the expression $- + +$ simplifies to $-$, which matches the right side. 9. Hence, the equality $- + + = -$ is true after simplification.