Question

Linear equation in one variable is

• A. $x^2=5$
• B. $x^2+4x=1$
• C. $x+3=4$

Answer 1

The correct option is C $x+3=4$

In linear equation in one variable, exponent of the variable is $1$.
From the given options, we get:
$x^2=5\to$exponent of the variable is $2$.
$x^2+4x=1\to$exponent of the variable are $2\&1$
$x+3=4\to$exponent of the variable is $1$.