Quick introduction to Algebra 1
Chapters
Multiplication
In Algebra we don't use the multiply symbol (×) between numbers and letters, because it’s confusing when you write 2 times X in algebra, it becomes 2 x X, and that’s so confusing, so we don’t use multiply symbol , instead We put the number next to the letter to mean multiply: 2X to represent 2 times X.
4x=8
Eg 1: To solve
3x = 6
Eg 2:
X/3=3
Eg 3: little complicated equation to solve
x/4+7=10
First we need to get rid of the +7 , for that subtract 7 from both sides
x/4+7-7=10-7
x/4+0=3
x/4=3
Now we need to get rid of divide by 4, for that lets multiply by 4 on both sides
x/4*4=3*4
And the answer is
x=12
Eg 4: Real World Example.
Ryan bought 2 dozens of pens online. Postage was $4 and the total cost was $24.
How much was each dozen?
Let x be the price of one dozen, so 2 dozen plus the postage would become
2x+4=24
Price of one dozen of pens is 10$
In next chapter, We will explore expressions
Description
In this tutorial we will cover Algebra 1 with examples. This is really a quick introduction to Algebra 1. This tutorial will suit students who want to check out what Algebra is all about or for students who wants to quickly brush up their Algebra knowledge
Topics for this tutorial includes
- Quick background on Algebra
- Variables and expressions
- Algebraic multiplication
- Expressions
- Order of operations
- Algebra basic definitions
- Commutative, Associative and Distributive Laws
- Manipulating Expressions
- Writing and interpreting expressions.
- Expressions adding fractions
- What next
This quiz is followed up with a BODMAS based quiz, which is absolutely free to take and test your knowledge.
I hope that you will enjoy this tutorial. Please leave your feedback and improvement suggestions
Prerequisites
Mathematics knowledge including pre algrebra, multiplication, subtraction, additions etc is essential
Audience
Students starting with Algebra 1 or students looking to quickly brush up their Algebra 1 knowledge.
Learning Objectives
Learn Algebra 1
Author: Subject Coach
Added on: 27th Jan 2015
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