12 rows · Algebra Homework Help: Simple Equations Solve each of the following equations and type only the High School Algebra Homework Help: Graph & Factor Quadratic Equations {{blogger.comssetIdToProgress[].percentComplete}}% complete Course Progress Best Score To understand the concept of an equation, consider a simple example. ____ + 15 = 25 The blank above stands for an unknown number. It is easy to find out that the blank equals 10 (or 25 − 15). In algebra, the unknown number is called the variable and represented by a letter of the alphabet (say, x). Thus, the problem could be written as
Algebra Homework Help : Simple Equations - Fill in the blanks
See also : Simple Algebra Quizzes to help you with School. Algebra is a branch of mathematics where certain kinds of problems are solved using equations. An equation can be looked upon as a weighing scale or beam balance see figure. Rather than use objects and weights, an equation uses constants, variables and mathematical symbols. A constant is a known number whose value does not change, e. A variable is an unknown quantity whose value needs to be found.
It is represented by any letter of the alphabet usually, xy or z. The first four symbols denote addition, subtraction, multiplication and division. The brackets parentheses are grouping symbols and require that what is within them be calculated first. The blank above stands for an unknown number. In algebra, the unknown number is called the variable and represented by a letter of the alphabet say, x. The numbers 10, 15 and 25 are algebra homework help simple equations constants.
To understand the above example better, imagine a weighing scale with 25 marbles in the right pan, algebra homework help simple equations.
In the left pan, there is a bag of negligible weight with an unknown number of marbles and some extra marbles outside the bag. The scale is in perfect balance. All the marbles are identical. Your task is to find out the number of marbles in the bag without opening it. Suppose we remove all algebra homework help simple equations extra marbles outside the bag in the left pan and find them to be 15 in number.
If we remove the same number of marbles in this example, 15 from the right pan, then the scale will continue to be in perfect balance. Since only the bag is in the left pan and 10 marbles remain in the right pan, we know without opening the bag that there are 10 marbles in the bag. From the above example, it is important to note that the scale is in perfect balance so long as the same operation addition, subtraction, etc.
is performed on both sides. Similarly, in algebra, an equation remains balanced so long as the same operation addition, subtraction, multiplication, and division is performed on both sides. If the same quantity is added to or subtracted from both sides of an equation, the two sides of the equation remain in balance.
If both sides of an equation are multiplied or divided by the same number, the two sides of the equation remain in balance. The answer is obtained when only the variable exists on one side. The answer may be checked by substituting in the left-hand side LHS and the right-hand side RHS of the equation. Examples are given below. Note that the multiplication sign is often not written explicitly in algebra.
Thus, 3 multiplied by y is written as 3 y rather than 3 x y. Here, algebra homework help simple equations, 3 is called the coefficient. The coefficient is the number by which the variable is being multiplied. If only y is written, then the coefficient is 1. Practice Exercise for Algebra Module on Simple Equations.
Practice Exercise for Algebra Module on Linear Equations I, algebra homework help simple equations. Algebra Homework Help : Equations See also : Simple Algebra Quizzes to help you with School P reparation Just what you need to know!
What is an Equation? Algebra Simple Equations. English Français Português Español Deutsch 日本語 हिन्दी. P reparation. Privacy Policy Algebra homework help simple equations and Copyright.
Algebra Basics: Solving Basic Equations Part 2 - Math Antics
, time: 9:35Lesson Learning How To Solve Simple Equations
So, in this case, we would subtract 3 on both sides, like so x+= Now we simplify! x=7. That would be how to solve a simple equation! And if it's a subtraction, you would do the same thing, except add! x-5= x-5+5=19+5. x=24 We are here to assist you with your math questions. You will need to get assistance from your school if you are having problems entering the answers into your online assignment. Phone support is available Monday-Friday, AMPM ET High School Algebra Homework Help: Graph & Factor Quadratic Equations {{blogger.comssetIdToProgress[].percentComplete}}% complete Course Progress Best Score
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