Question

Set up an equation in the following case:

The teacher tells the class that the highest marks obtained by a student in her class is twice the lowest marks plus 7. The highest score is 87. (Take the lowest score to be l.)

Answer 1

Let the lowest marks be l.

2 × Lowest marks + 7 = Highest marks

2 × l + 7 = 87

2 l + 7 = 87