Linear Equation in one variables 3

Linear Equation in one variables 3

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  Linear Equation inOne Variable 1 Linear Equation in One Variable NG YIT HOE [email protected] 018-9095766
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  Linear Equation inOne Variable 2 What is Linear Equation • What is Linear Equation • What is Variable
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  Linear Equation inOne Variable 3 Linear Equation in One Variable • A linear equation is an equation for a straight line • In form of where a and b are real number and x is variable bax + 23 +x
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  Linear Equation inOne Variable 4 What is this? E
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  Linear Equation inOne Variable 5 If use Orange? O
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  Linear Equation inOne Variable 6 Linear Equation in One Variable cont... • There is only one unknown value, usually using , • For examples , x 03 =− y31=−x 9)1(3 =−x 34 3 )1( += − x x 63 += zz 127 −= oo
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  Linear Equation inOne Variable 7 compare these two equatuons • Try to compare these two equatuons 514 =+51=+x with value with unknown
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  Linear Equation inOne Variable 8 51=+x • Left - hand side = Right -hand side
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  Linear Equation inOne Variable 9 • What will if put x+1, 5 to the balance scale? Balance scale 1+x 511−+x 15 − What will if adding -1 to the both sides balance scale? x 4 Result?
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  Linear Equation inOne Variable 10 Addition and Subtraction 1511 −=−+x 15 −=x 4=x 51=+x Balance • Left - hand side = Right - hand side by adding 1 to both sides
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  Linear Equation inOne Variable 11 Addition and Subtraction ... • Left - hand side = Right -hand side 15 −=x 4=x 51=+x (ignore 1 step) check the symbol. when shifting cause + become -
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  Linear Equation inOne Variable 12 Try these 4334 +=− xx 4213 −=− xx xxxx 315659 −−=−−
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  Linear Equation inOne Variable 13 Multiplication and Division • Example 1
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  Linear Equation inOne Variable 14 balance scale • How to put to the balance scale? x3 6 3 3x 3 6 x 2
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  Linear Equation inOne Variable 15 Multiplication and Division • Example 1
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  Linear Equation inOne Variable 16 Try These x53 = 93 =x 9 5 3 = x 2 5 3 = x
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  Linear Equation inOne Variable 17 Mixed operation • Example 1
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  Linear Equation inOne Variable 18 Try these