91Ó°ÊÓ

An equation is a mathematical statement that two expressions are equal. The solution of an equation is the value that when substituted for the variable makes the equation a true statement.

Example: 3x + 5 = 14 is an equation, in which 3x+5 and 14 are two expressions separated by an ‘’equal’’ sign.

Step 1: Simplify each side of the equation by removing parenthesis and combining the like terms.

Step 2: Use addition or subtraction to isolate the variable term on one side (preferably in the left side).

Step 3: Use Multiplication or Division to solve for the variable.

Solving the equation step by step $2+n=−\text{ â¶Ä‰}6$

$\begin{array}{l}2+n=−\text{ â¶Ä‰}6\\ 2−2+n=−\text{ â¶Ä‰}6\text{ â¶Ä‰}−\text{ â¶Ä‰}2\text{ â¶Ä‰â€‰â¶Ä‰â€‰â¶Ä‰â€‰[ â¶Ä‰Subtract â¶Ä‰2 â¶Ä‰from â¶Ä‰both â¶Ä‰sides â¶Ä‰]}\\ n\text{ }=\text{ â¶Ä‰}−\text{ â¶Ä‰}8\end{array}$

The solution of the equation$2+n=−\text{ â¶Ä‰}6$is$n\text{ }=\text{ â¶Ä‰}−\text{ â¶Ä‰}8$