# Cost of a pencil is 3 times the cost of an eraser. Represent this in the form of a linear equation in two variables. Also, find four solutions of the above equation.

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cost of eraser is x

cost of pencil is 3x=x

solutions

if x=1

3x=3

x=4

3x=12

x=5

3x=15

x=15

3x=45

cost of pencil is 3x=x

solutions

if x=1

3x=3

x=4

3x=12

x=5

3x=15

x=15

3x=45

Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.

Let the cost of eraser be x and pencil be y

so y=3x

if x=1 then y=3,, x=2 then y=6,, y=1 then x=/3 ,, y=2 then x=2/3

so y=3x

if x=1 then y=3,, x=2 then y=6,, y=1 then x=/3 ,, y=2 then x=2/3