Question

Given 2x=4, Where x is distance. Find the value of X.

Answer 1

Hint: As we all know that an equation that forms a graph in the shape of a straight line in the X-Y plane is called a linear equation. It is sometimes either the sum of two independent variables of degree one, or it is sometimes a multiple of constant and variable.


Complete step by step solution:
It is given to us that the equation is,
$2x = 4$
Here, x is the distance. Now to solve it, we need to divide the whole equation by 2.
$\begin{array}{c}
\dfrac{2}{2}x = \dfrac{4}{2}\\
x = \dfrac{4}{2}\\
 = 2
\end{array}$
Therefore, the value of x equals 2.
Additional Information: The degree of an independent or dependent variable determines whether the equation is linear or not. If the degree of one of the variables in an equation is more than one, but it should be an integer, then the equation is not linear and can be said of more than one. If the degree of one of the variables is 2, then the equation is said to be a quadratic equation, and if the degree of one of the variables is 3, then the equation is said to be a cubic equation.

Note: It is not necessary that a linear equation would be in the first quadrant only, it can be in all the four quadrants in a two-dimensional space or it can be in a three-dimensional space, also combining all the eight quadrants. A 3-D line has two independent variables and a single dependent variable. The independent and dependent variables could be arbitrary.