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:

$\begin{array}{l}\frac{y}{4}=−8\\ 4·\frac{y}{4}=4·−8\left[\text{Multiplybothsidesby4}\right]\\ y=−32\end{array}$

No, the solution of the equation is not y = 32, the correct solution is y = – 32