Question

EXERCISE 4.1
1. The cost of a notebook is twice the cost of a pen. Write a linear equation in two
variables to represent this statement
(Take the cost of a notebook to be x and that of a pen to be y.
2. Express the following linear equations in the form art by+c=0 and indicate the
values of a, b and c in each case:
12x + 3y = 9.35 (m) x-
5
(v) 2x=-5y (vi) 3x +2=0
G)-2x + 3y = 6
(iv) x=3
(vii) y-2=0​

Answer 1

Answer:

1) x=2y

2) 1) 12x+3y-9.35=0

2)2x+5y+0=0

6)3x+2=0

7)y-2=0

Answer 2

Step-by-step explanation:

1

cost of notebook =x

cost of pen =y

acc. to ques

x=2y

x-2y=0