SOLUTION: Snow white and the seven dwarfs went to work as carpenters. Each dwarf earned $20. Snow white earned $3.50 more than the average of the eight. How much did snow white earn?

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Question 600351: Snow white and the seven dwarfs went to work as carpenters. Each dwarf earned $20. Snow white earned $3.50 more than the average of the eight. How much did snow white earn?
Answer by w_parminder(53) About Me  (Show Source):
You can put this solution on YOUR website!
Let earnings of Snow white = X
Average of the eight = %28+140%2BX+%29%2F8
Snow White's earning is $3.50 more than the average of the eight,
so
X=%28%28+140%2BX+%29%2F8%29%2B3.5
OR
X=%28+140%2BX%2B28+%29%2F8
OR
8X = 168 + X
OR
8X - X = 168
OR
7X = 168
X = 168/7
X = 24
So Snow White earn $24