Question

Which of the following is a linear equation in one variable ? *

x + y = 4

x - 3y = 7

4 - x = 5

x = 4 + y

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Answer 1

Answer:

x+y -- 4 is the linear equation in one variable

Answer 2

Answer:

4 - x = 5 is the linear equation in one variable.

Step-by-step explanation:

It is because other equations given above contain 2 variables,i.e.,x and y so they are not the equations with one variable.

Hope it helps you.