## Simultaneous Equations: Addition Method and Substitution Method

In mathematics, we may use two equations to solve a calculation problem. If there are two unknown numbers in the equation, we cannot find the answer. However, if there are two equations, we can find the answer even if there are two unknown numbers in the equation. A combination of two or more equations is […]

## Direct and Inverse Proportion: Coordinates and Equation of the Graph

An important concept in mathematics is that of direct proportion and inverse proportion. We frequently use the words direct proportion and inversely proportional in our daily lives. Direct proportion and inversely proportional are familiar to us and are concepts that everyone uses. The concept of direct proportionality and inversely proportionality are used in many situations. […]

## Linear Equations: Transposition and Tips for Solving Word Problems

Math calculations frequently involve the use of letters instead of numbers. By using algebraic expressions, we can easily solve math problems. One of the most important areas of algebraic expressions is linear equations. Linear equations are frequently used in daily life calculations and are the basis of mathematics. Even if there is a number that […]

## Expansion by Factoring Formulas and Polynomial Factorization

In mathematics, we learn algebraic expressions using the alphabet. They calculate by adding, subtracting, multiplying, and dividing between symbols. Parentheses are often used in math calculations. The multiplication between parentheses uses formulas called factoring formulas. Once you learn factoring formulas, you will also be able to factorize them. Factorization is the way to convert polynomials […]

## Multiply and Divide Polynomials, Distributive Property, and Substitutions

Algebraic expressions are math equations that use the alphabet. In junior high school and high school math, we need to understand how to use algebraic expressions because they are almost always used in math. An equation that consists of several letter expressions is called polynomials. Calculation of polynomials frequently involves multiplication and division. So we […]

## Algebraic Expressions of Monomials and Polynomials: Addition and Subtraction

In mathematics, we use letters to perform calculations. This is called algebraic expression. Before you study the algebraic expression, you use only numbers in the calculation. However, after learning algebraic expressions, math is mainly done by using alphabets. Algebraic expressions have rules. Therefore, you have to learn how to use algebraic expressions. There are also […]

## Commutative Property and Associative Property: Addition and Multiplication in Math

When you learn mathematics, you may be taught about the commutative property (or commutative law) and the associative property (or associative law). The commutative property and the associative property are taught in elementary or junior high school. The commutative property and the associative property are formed by addition and multiplication. The commutative property and the […]

## Four Arithmetic Operations of Positive and Negative Numbers: Priority of Math Calculations

After learning to add, subtract, multiply, and divide for positive and negative numbers, we need to be able to calculate mixed equations for each. Addition, subtraction, multiplication, and division are collectively called four rules. In mathematics, we study the four rules of arithmetic (four arithmetic operations). However, after learning about positive and negative numbers, we […]

## Positive and Negative Numbers: Multiplication, Division and Power

When learning negative numbers, many people get confused. This is because when you multiply or divide different signs, the signs change. In addition, when you multiply negative by negative, the sign becomes positive. Why does this happen? Few people can explain this reason. However, to understand the math, we need to resolve the question beforehand. […]

## Positive and Negative Numbers: Addition and Subtraction / Absolute Value

When you learn math, you have to understand negative numbers. Unlike when you were only learning positive integers, learning the concept of zero and addition and subtraction will allow you to perform complex calculations. It may seem strange to say that there are numbers smaller than zero. However, we use negative numbers in many aspects […]