When a number is subtracted from 2, the result equals 4&n...
When a number is subtracted from 2, the result equals 4 less than one-fifth of the number. Find the number
11
152
5
52
Correct answer is C
Let the number be y, subtract y from 2 i.e 2 - y
2 - y = 4 < 15 y,
2 - y = y5 - 4
2 - y + 4 = y5
6 = y5 + y
6 = y+5y5
6 = 6y5
multiplying through by 5
6 * 5 = 6y
306 = y
= 5
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