Question

set up equation for following the teacher tells the class thar the highest marks obtained by a studen in her classis twice the lowest marks plus 7. The highest score is 87. ( take the lowest score to be l​

Answer 1

Step-by-step explanation:

Let

Highest Marks = h = 87.

Lowest Marks = l = ?

Then the equation becomes:

h = 2l + 7 .(1)

As h = 87 then equation becomes:

87 = 2l + 7

From here we can find tge value of l :

87-7 = 2l

80 = 2l

80 / 2 = l

40 = l

Therefore,

Lowest Marks = l = 40.