cost of pencil is 3 times and the cost of eraser represent this in the form of linear equation in two variables also find its four solution
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Answered by
1
y=3x
y=1
y=3x
1=3x
x=1/3
y=2
2=3x
x=2/3
y=1
y=3x
1=3x
x=1/3
y=2
2=3x
x=2/3
Answered by
3
let the cost of eraser be X.
then pencil cost = 3x
let the total cost be y .
y = 3x + x
y = 4x
if x = 1 , if x = 2 ,
then, then,
y = 4. y = 8
then pencil cost = 3x
let the total cost be y .
y = 3x + x
y = 4x
if x = 1 , if x = 2 ,
then, then,
y = 4. y = 8
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