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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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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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Single equation method | Single equation model | Example of single equation.

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Single equation method :  An equation has a single variable, that equation is called a single variable. If the variable exponent of a variable equation is 1, then that equation is called a simple equation. Example : a + 7 = 18 The value at which the variable satisfies the equation is called a unitary equation. Examples of single equation : 1)  3a + 4 = 10             3a = 10 - 4             3a = 6             a = 6 / 3             a = 2 2) 4a + 1 = 9            4a = 9 - 1            4a = 8            a = 8 / 4            a = 2 3) 3b - 5 = 4           3b = 4 + 5           3b = 9           b = 9 / 3           b = 3 4) (...
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