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Equation

Definition Of Equation

An Equation is a mathematical sentence that uses the equal sign (=) to show that two expressions are equal.

Example of Equation

The following are some examples of equation. 
10 + 2 = 12
4a - 3b = 1
ex + y = - 2

Video Examples:Solving Linear Equations
 

Solved Example on Equation

Ques: Solve the equation for x: 7x + 8 = 1

Choices:

A. 1
B. 9/7
C. - 1 
D. 8/7 
Correct Answer: C

Solution:

Step 1: 7x + 8 = 1
Step 2: Subtracting 8 from each side, we get, 7x = - 7.
Step 3: Dividing both sides by - 7, we get, x = - 1.