# Which of the following pairs of linear equations are consistent/ inconsistent? If consistent, obtain the solution graphically: x – y = 8, 3x – 3y = 16 - Mathematics

Which of the following pairs of linear equations are consistent/ inconsistent? If consistent, obtain the solution graphically:

x – y = 8, 3x – 3y = 16

#### Solution

x - y = 8

3x - 3y = 16

a_1/a_2 = 1/3, b_1/b_2 = (-1)/-3 = 1/3 and c_1/c_2 = 8/16 = 1/2

Since a_1/a_2 = b_1/b_2 ≠ c_1/c_2

Therefore, these linear equations are parallel to each other and thus have no possible solution. Hence, the pair of linear equations is inconsistent.

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#### APPEARS IN

NCERT Class 10 Maths
Chapter 3 Pair of Linear Equations in Two Variables
Exercise 3.2 | Q 4.2 | Page 50