Question

Linear equation in one variable has:

• A. Only one variable with any power
• B. Only one term with a variable
• C. Only one variable with power $1$
• D. Only constant term

Answer 1

The correct option is C

Only one variable with power $1$

Explanation for correct option:

Define the linear equation in one variable

1. An equation of the form of $ax+b=0$ is said to be linear equation in one variable.
2. Here, $a$ and $b$ are constants and $a\ne 0$, and $x$ is a variable.
3. Some examples of linear equation in one variables are $27x=3,p=7,7m+2=3m$ etc.

From the standard form of the linear equation on one variable, it is clear that a linear equation on one variable consists of only one variable and the highest power of the variable is $1$.

Hence, option (C) is the correct option.