Malloy solved the equation −5x − 16 = 8; his work is shown below. Identify the error and where it was made.
−5x − 16 = 8
Step 1: −5x − 16 + 16 = 8 + 16
Step 2: −5x = 24
Step 3: negative five times x over five = twenty-four over five
Step 4: x = twenty-four over five
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error was made in 3rd step
Step-by-step explanation:
1st step - correct
2bd step - correct
3rd step - incorrect because is equal to (=) will also come with 5 to right side and then the answer will 24/-5 or -24/5
4th step - -24/5 or 24/-5
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