Question

Erica solved the equation −5x − 25 = 78; her work is shown below. Identify the error and where it was made. (5 points)

−5x − 25 = 78
Step 1: −5x − 25 − 25 = 78 − 25
Step 2: −5x = 53
Step 3: = -5x/-5 = 53/-5
Step 4: x = -53/5

Select one:
a. Step 1: She should have added 25 to each side.
b. Step 1: She should have divided both sides by −5.
c. Step 3: She should have divided both sides by −5.
d. Step 3: She should have multiplied both sides by −5.

Answer 1

\(-5x-25=78\)

Answer 2

Step 1: Add both sides by 25

Answer 3

\(-5x-25+25=78+25\)

Answer 4

Step 2: Simplify it
\(-5x=103\)

Answer 5

Step 3 : Divide both sides by -5

Answer 6

\(\frac{-5}{-5}x=\frac{103}{-5}\)

Answer 7

Step 4: Simplify it
\(x=\frac{103}{-5}\)

Answer 8

so step 3?

Answer 9

Option A is correct bcoz she should hv added 25 to each side

Answer 10

ohhhhh

Answer 11

thank you

Answer 12

u can try to compare my answers with the question.

np ^