## 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

e^{x} + 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.