Question

1..
the cost of book twice in cost of fountain pen write a linear equation in two variable to represent this statement

2..
give the geometric representatives of 2x+7=0as equation
(1) in one variable
(2) in two variable

Answer 1

1)Consider the books cost to be x and the pen`s cost to be y.

Then

2y=x

Answer 2

Answer:

Here is your required answer

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Step-by-step explanation:

1. 2x = y

2.

(i) 2x = -7

(ii) ?????