Question

The teacher tells the class that the highest score obtained by a student in her class is three times the lowest marks minus seven .if the highest marks are 86. Find the lowest marks

Answer 1

let the lowest marks be x
highest marks =86
A.T.Q
3x-7=86
3x=86-7
3x=79
x=79÷3
x=26.34

Answer 2

Let the lowest marks be x.

  3x - 7 = 86

= 3x = 86 + 7

= x = 93 / 3

= x = 31

∴The lowest mark are 31.

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