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Introduction to Euclid's Geometry
Question
The cost of a notebook is twice the cost of a pen. Write a linear equation in two variables to represent this statement.
Solution
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.
Question
Express the following linear equations in the form ax + by + c = 0 and indicate the values of a, b and c in each case:
Solution
Comparing with ax + by + c = 0, we get
a = 2, b = 3, c = 
Question
Express the following linear equations in the form ax + by + c = 0 and indicate the values of a, b and c in each case:
Solution
Comparing with ax + by +c = 0, we get
a = 1, b = 
, c = - 10
Question
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
Solution
- 2x + 3y = 6
- 2x + 3y - 6 = 0
Comparing with ax + by + c = 0, we get
a = - 2, b = 3, c = -6
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Mock Test Series
Mock Test Series