SOLUTION: Professor Diamond received a 5% raise. Her new salary is $42,000. What was she making before the increase?

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Question 701220: Professor Diamond received a 5% raise. Her new salary is $42,000. What was she making before the increase?
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Let x = original salary

x + 5% of x = New Salary

x + 0.05x = 42000

1.05x = 42000

x = 42000/1.05

x = 40000

So she was making $40,000 before the salary increase.