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What is Linear equation | Linear equation examples | Linear equation definition, formula.

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What is Linear equation : Important things to remember : 1) Real numbers a and b (where a is not equal to zero) and x is a variable, So the equation ax + b = 0 is called one variable linear equation. 2) The left hand side of the equation ax + b = 0 is a linear polynomial and there is only one variable in that polynomial. 3) If a given equation converts to an equation of the form ax + b = 0, then it is said to be a linear equation in one variable. 4)The exponent of the x variable in the equation is one. These equations are like the general form of the linear equation ax + b = 0. So they are linear equations. Linear equation example : 1) 5x - 12 = 0 2) 7x + 6 = 9x - 4 3) x + 9 = 4x. Solve the equation : 1) The number by which both sides of the equation are equal in value. That number is said to satisfy the equation. 2) The number that satisfies the equation is called the solution of the equation. 3) The set of solutions of an equation is the set of solutions of tha...
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Average problem tricks and shortcuts | average math concept.

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Averages math concept : The word 'average' is common to everyone. Data collected are always necessary for every project. Definition : " The sum of all observations divided by total number of observations is known as average also know as arithmetic mean". Or " When objects are divided into equal parts, the number representing the same part is called average. " For example - Average marks of students. - Average height of students. - Average speed of the bike. - Average profit of the year. etc. Properties of Average : The average of the numbers is also called the mean of the numbers. The sequential numbers are equal to the numbers in the mean. The average of sequential even or odd numbers is equal to the mean number. Some important formulae : 1. Average = ( The sum of all the given numbers ) / Total number. 2. The sum of all the given numbers = Average × Total number. 3. Total number = Average × The sum of all the given n...
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Simple Interest math : simple interest formula, tricks and examples.

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Simple Interest math: People need large amount of money for various reasons like buying a car, land, house, farm, education of children, etc.. Ordinary people always need money. If this large amount is not readily available with us, we can borrow it from a bank or a co-operative credit society. This borrowed amount is called loan. However, at the time of returning the loan to the bank or credit society, we have to pay back an amount somewhat bigger than the loan. This additional amount is called simple interest. Suppose Sachin borrowed Rs 4,00,000 from a bank to buy a car. When he paid back his loan after two years, he gave the bank an amount of Rs 4,50,000. That is, he paid an additional amount of Rs 50,000. It means that he paid Rs 50,000 as simple interest. The amount borrowed is called the principal. The principal period of time for which the amount is borrowed is called either ' period ' or ' time ' . In the above example, the principal is Rs 4,00,...
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