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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
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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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Malloy error was in step 3, Malloy put -5x over 5 = 24 over 5, but the correct way to do step 3 is -5x over -5 = 24 over -5 which then x would equal to 24 over -5 or x = -4.8 in simpler terms
Dheeraj Gupta
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Jun 5, 2019
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he did multiplication instead of division
Ncmathsadist
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Jun 9, 2019
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