Question 526107
When Milo got promoted at work, he received a 5% pay raise. He now earns $71,400 per year.
What was his annual salary before his raise?


Let
His annual salary was = x
5% of x = 5/100 * x 
5% of x = 5x/100

Total Salary before raise + 5% increase = Total Salary Now

x+5x/100 = 71400
Multiply by 100 both sides
100x+5x=71400 * 100
105x=7140000
x=7140000/105
x = 68000


His salary before raise was = $68000






2nd Method
===========

Let
His annual salary was = x

105% x = 71400
105/100 * x = 71400
x =  71400 * 100/105
x = 7140000/105
x = 68000

His salary before raise was = $68000