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In two variables, the equation $x = 9$ can be written as:

Class 9Lines Parallel to the AxesLinear Equations

A $1. x + 0. y - 9 = 0$
B $0. x + 1. y - 9 = 0$
C $1. x + 1. y - 9 = 0$
D $1. x - 1. y - 9 = 0$

Step-by-Step Solution

Writing

x = 9

in the form ax + by +

c = 0 : a = 1, b = 0, c = - 9

, giving 1.

x + 0. y - 9 = 0

.

Answer: A)

1. x + 0. y - 9 = 0

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