Answer:
She made a mistake in Step 7.
Step-by-step explanation:
Step 1 through 6 are correct. Only from Step 6 to Step 7 the problem comes in: both sides of the equation are multiplied by x, however the x on the left side, by error, becomes 1. The correct state in Step 7 should look like this:

Answer:
24/60 = 2/5
Step-by-step explanation:
24/60
Divide both the numerator and denominator by a common factor, 6
4/10
Divide both the numerator and denominator by a common factor, 2
2/5
Answer:
-3 mate
Step-by-step explanation:
$15 x 12 = $180
$15 dollars per month, 12 months in a year. $180 in deductions.