Solving an equation using multiplication and division, Mathematics

 Solving an equation using Multiplication and Division     

 A variable is a symbol that represents a number. Usually we use the letters like n, t, or x for variables. For instance, we might say that s stands for the side-length of a square. The perimeter of the square can be given by 4 × s. The area of the square can be given by s × s. When working with the variables, it can be very helpful to use a letter which will remind you of what the variable stands for.

An expression is a mathematical sum or difference of mathematical terms which can use numbers, variables, or both.

An equation is a statement that 2 numbers or expressions are equal. Equations are useful for relating the variables and numbers. Many word problems can be written down easily as equations with the little practice. Many simple rules are there for simplifying equations.

When an equation has a variable, the solution to the equation is the number which makes the equation true when we are replacing the variable with its value.

When a variable can be divided by some number, we can use multiplication on both the sides to solve for variable.

When a variable can be multiplied by some number, we can use division on both the sides to solve for the variable.

 

To solve a multiplication equation, use inverse operation of division. Divide both the sides by same non-zero number. If a = b, then ac = bc where c ¹ 0

If c = d, then c/e = d/e where e ¹ 0

Multiplying both the sides of an equation by the same nonzero number produces an equivalent equation. We can adapt this property to state that if we divide both sides the equation by the same nonzero number, we can obtain an equivalent equation.

This fact follows from knowing that multiplying by reciprocal of the number is the same thing as dividing by that number.

c • 1/e is equivalent to c ÷ e

Multiplication in the algebra will have the "x" next to a number. The process will be the combination of multiplication and division to solve for "x". To get "x" alone, we do the opposite operation. To solve the division equation, use the inverse operation of the multiplication. Multiply both the sides by same number. Any operation performed on one side should also be done to the other side.

Posted Date: 9/18/2012 6:38:53 AM | Location : United States







Related Discussions:- Solving an equation using multiplication and division, Assignment Help, Ask Question on Solving an equation using multiplication and division, Get Answer, Expert's Help, Solving an equation using multiplication and division Discussions

Write discussion on Solving an equation using multiplication and division
Your posts are moderated
Related Questions

do yall help kids in 6th grade

Hi, this is EBADULLA its about math assignment. 1 application of complex analysis used in thermodynamics. . what all uses are there in that... plz let mee know this answer.

Which of the following is the most crucial aspect of learning multiplication? i) Multiplication facts ii) Recall of tables and their recitation iii) Understanding "how man

Example of division of fractions: Example: (4/5)/(2/9) = Solution: Step 1:             Invert the divisor fraction (2/9) to (9/2). Step 2:             Multip

Calculate the edges in an undirected graph along with two vertices of degree 7, four vertices of degree 5, and the remaining four vertices of degree are 6? Ans: Total degree of

Compute the volume and surface area of a right circular cone: Compute the volume and surface area of a right circular cone along with r =  3", h = 4", and l = 5".  Be sure to


The sum of two integers is 36, and the difference is 6. What is the smaller of the two numbers? Let x = the ?rst integer and let y = the second integer. The equation for the su

HOW DOES A CHILD THINK? :  You must have interacted with children of various ages. From your experience, do you feel that children start learning, from a very early age, and conti