Erica solved the equation −5x − 25 = 78; her work is shown below. Identify the error and where it was made. (2 points)

−5x − 25 = 78
Step 1: −5x − 25 − 25 = 78 − 25
Step 2: −5x = 53
Step 3: negative five times x over negative five = fifty-three over negative five
Step 4: x = negative fifty-three over five

Question

Erica solved the equation −5x − 25 = 78; her work is shown below. Identify the error and where it was made. (2 points)

−5x − 25 = 78
Step 1: −5x − 25 − 25 = 78 − 25
Step 2: −5x = 53
Step 3:  negative five times x over negative five =  fifty-three over negative five 
Step 4: x = negative fifty-three over five

dude · Answer

Welcome to QC!

Remember that if you want to get rid of a number on one end, you must do the opposite to negate it

If you're adding, subtract and vice versa
If you're multiplying, divide and vice versa