$\begin{array}{l}x=6 \\ X=6.1 \\ X=-6.04 \\ 73 \cdot X=-6.859\end{array}$

The meaning of begin is to do the first part of an action : How to use begin in a sentence. We can use the verbs begin and start to mean the same thing but begin is more formal than start.

Begin is an irregular verb. Used with noun phrases if you start or begin something, you do it from a particular time. To begin to do something means to start doing it.

Definition of begin verb in oxford advanced learner's dictionary. When you begin something, you go ahead with its first part or stage — you can begin the day with a good attitude, or begin a very long book over and over again, always falling asleep before.