Simplify left side: The question prompt is asking to verify if the equation −5−7=−5+(−7) is true by simplifying both sides of the equation.First, let's simplify the left side of the equation, which is −5−7.−5−7= −5+(−7)
Simplify right side: Now, let's simplify the right side of the equation, which is already given as −5+(−7).−5+(−7)= −5−7
Conclusion: Since both sides of the equation simplify to the same expression, −5−7, we can conclude that the original equation is true.Therefore, −5−7 is indeed equal to −5+(−7).
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