## PCSR Civil Service Exam Review Guide 8

PART I: MATH

Lesson on Equations

Lesson 1: Introduction to Equations
Lesson 2: Solutions to Equations
Lesson 3: Properties of Equality
Lesson 4: Solving Equations Part 1
Lesson 5: Solving Equations Part 2
Lesson 6: Solving Equations Part 3
Lesson 7: Solving Equations Part 4

How to Solve Equations

B. Articles

PART II: ENGLISH

Vocabulary

Civil Service Exam Vocabulary Review 7

## How to Solve Equations Video Tutorial Part 1

I have created a video about A Tutorial on Solving Equations Part 1 in Taglish or mixed Tagalog and English.  This is the first part of a series of video on how to solve equations. Watch the video to know about the concepts and ideas behind solving equations.

The equations solved in this video are the following:

1.) $x + 4 = 9$
2.) $3x = 18$
3.) $\frac{x}{5} = 12$
4.) $2x + 3 = 9$
5.) $4x - 3 = 9$

Thanks for watching and I hope you like the video.

## How To Solve Equations Tutorial Series

Many examination takers fail because of their inability to solve equations. The objective of this series is for you to be able to learn how to solve equations from the simplest to more complicated equations. Note that you have to master them in order for you to solve algebra problems especially word problems.

A Tutorial on Solving Equations Part 1 covers basic equations such as x + b = c, ax = b, ax + b = c, and x/a = b.

A Tutorial on Solving Equations Part 2 covers how to solve equations of the forms ax = bx + c, x + a = bx + c, a(bx + c) = c and simple fractions.

A Tutorial on Solving Equations Part 3 mostly covers how to solve equations with fractions.

Again, you must master how to solve equations in order for you to solve algebra problems, so it is important that you read this series and solve examples from them.

## A Tutorial on Solving Equations Part 2

This is a continuation of Solving Equations Part 1.  As I have mentioned in that post, being able to solve equations is very important since it is used for solving more complicated problems (e.g. word problems).

In this post, we are going to solve a slightly more complicated equations. We already discussed 5 examples in the first post, so we start with our sixth example.

Example 6: $8x = 4x - 12$

As I have mentioned in the previous examples, we need to isolate $x$ on one side of the equation and all the numbers on the other side. Here, we decide to put all $x$‘s on the left hand side, so we remove $4x$ on the right hand side. To do this, we subtract $4x$ from both sides of the equation. Continue Reading