Question

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

Step 1: He should have subtracted 16 from each side.
Step 1: He should have divided both sides by −5.
Step 3: He should have multiplied both sides by −5.
Step 3: He should have divided both sides by −5.

Answer 1

@StudyGurl14

Answer 2

@Michele_Laino

Answer 3

If I divide both side by 5 last equation I get this:
\[\Large - x = \frac{{24}}{5}\]

Answer 4

sides*

Answer 5

whereas, If I divide both sides of the equation:
−5x = 24
by -5, I get this:
\[\Large x = - \frac{{24}}{5}\]

Answer 6

@Michele_Laino