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Express the following linear equations in the form ax + by + c = 0 and indicate the values of a, b and c in each case:
- 2x + 3y = 6

- 2x + 3y = 6
rightwards double arrow   - 2x + 3y - 6 = 0

Comparing with ax + by + c = 0, we get
a = - 2,  b = 3, c = -6

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Express the following linear equations in the form ax + by + c = 0 and indicate the values of a, b and c in each case:
straight x minus straight y over 5 minus 1 equals 0

straight x minus straight y over 5 minus 1 equals 0
Comparing with ax + by +c = 0, we get

a = 1,   b = negative 1 fifth, c = - 10
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Express the following linear equations in the form ax + by + c = 0 and indicate the values of a, b and c in each case:
2 x plus 3 y equals 9.3 space top enclose 5


space space space space space space space 2 straight x plus 3 straight y equals 9.3 space top enclose 5
rightwards double arrow space space space space 2 straight x plus 3 straight y minus 9.3 space top enclose 5 space equals space 0
Comparing with ax + by + c = 0,  we get
a = 2, b = 3, c = negative 9.3 space top enclose 5
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The cost of a notebook is twice the cost of a pen. Write a linear equation in two variables to represent this statement.

Let the cost of a notebook be Rs x and the cost of a pen be Rs y.
Then, according to the given condition of the question,
x = 2y
⇒ x – 2y = 0
This is the required linear equation in two variables x and y.

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Express the following linear equations in the form ax + by + c = 0 and indicate the values of a, b and c in each case:
x = 3y

x = 3y
rightwards double arrow  x - 3y + 0 = 0
Comparing with ax + by + c = 0, we get
a = 1,  b = -3, c = 0

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