Overview Linear Equation in one variable Linear Equation in two variable Setting up an Equation Solution of a Linear Equation
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OPJECT!VES To solve the simple equation in their daily To make maths easy and simple for the students. To relate maths with their daily life. To improve the basic mathematic skills among the students.
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Game Suppose a number. Multiply it by 2. Add 10 now. Divide the number by 2 Now Subtract 5 from the number. Now you will get the number which you took in starting. FOR
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WHAT DO YOU UNDERSTAND BY THIS It's a M athem atical M agic Ok, So Today we will learn about some more mathematical tricks
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Today we will Learn about the Linear Equation
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What do you observe in both the pictures ? There are two circles, In first circle the value of and X are specified but in second circle it are unknown.
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A letter or symbol that stands for an unknown number is called Variable. A letter or symbol that stands O for an known number is called Constant.
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Now solve 4 increased by a number is equal to 45. Make the required linear equation ? Here the number is unknown, so we can take it equal to x (variable) So according to question our required equation is -- seoec
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Solve this Varun and Raman have the sum of Rupees 150. find the required equation ? Here both the figures are unknown— let Varun has x Rupees and Raman has y rupees. So required equation is —
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30 40 50 Solve = 60 60 70 35
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Solving Equations x x 7 3
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Solving Equations x 7 2
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Solving Equations 2(X + 4) = 22 x 4 x 22 4
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Solving Equations 2(X + 4) = 22 x 4 11 x 4 11
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Using different Operations What is the operation of the equation? Addition What inverse operation would be use to solve the equation? How do you know? Subtraction
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Using different Operations What is the operation of the equation? Multiplication What inverse operation would be use to solve the equation? How do you know? Division
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Using different Operations What is the operation of the equation? division What inverse operation would be use to solve the equation? How do you know? multiplication
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Home extension Algebra language Bingo Draw up a 3 X 3 grid and pick 9 of these and fill in your grid 3b 2x-5 2k 2P+2 mf 3a-2 3(x - 2) 3x + 6 6y
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Which number sentence is true if x= 5 #10) a) 38 -x = 30 b) 33 + x = 38 c) 38 = X + 30 d) x- 38 = 33 The correct answer is Explain how you know:
Discussion
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