Answer :
The relationship between the cost of books and pens is an illustration of linear equation.
The linear equation is (a) [tex]x - 2y - 10 =0[/tex]
From the question, we have:
x exceeds 2 times y by 10
Rewrite as:
x exceeds 2y by 10
Exceed means plus (+)
So, we have:
[tex]x = 2y + 10[/tex]
Equate the above equation to 0
[tex]x - 2y - 10 =0[/tex]
Hence, the required equation is (a) [tex]x - 2y - 10 =0[/tex]
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