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:

Question

3 years ago

8

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: -5x/5=24/5 Step 4: x =24/5 Select one: a. Step 1: He should have subtracted 16 from each side. b. Step 1: He should have divided both sides by −5. c. Step 3: He should have multiplied both sides by −5. d. Step 3: He should have divided both sides by −5.

Mathematics

2 answers:

xxTIMURxx [149] · Answer 1 · 2022-01-18T10:36:51+03:00

xxTIMURxx [149]3 years ago

5 0

Answer is

d. Step 3: He should have divided both sides by −5.

Savatey [412] · Answer 2 · 2022-01-18T11:43:09+03:00

−5x − 16 = 8 Proof=Given
−5x − 16 + 16 = 8 + 16 Proof=Addition Property of Equality
−5x = 24 Proof=Addition Property of Equality
-5x/5=24/5 This is where we find his fault. You have to divide by whatever the number that alters the variable is. In this case, that's -5. The answer is therefore D. Step 3: He should have divided both sides by 5.