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Section_2-3_(part_2)_and_2-4

# Section_2-3_(part_2)_and_2-4 - • If no value of the...

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Section 2-3 (part 2) and 2-4 Equations with Fractions AND Solving equations with variables on both sides

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Objectives Use an LCD to clear an equation of fractions Gather all the variable to one side of an equation to solve.
Getting rid of fractions Multiply by the LCD, and all your fractions go away! 7 2 3 2 = + x x

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Getting rid of decimals Multiply by a power of 10 (10, 100, 1000) and all your decimals go away!! 25 . 13 75 . 8 5 . 0 = + a
Equations with variables on both sides Use inverse operations to get variables on one side of the equation. 16 5 4 7 + = - k k

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Equations with no solution

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Unformatted text preview: • If no value of the variable makes the equation true, the equation has no solution. When solving you will arrive at an untrue statement 1 5 5 9-= + n n Identity – an equation with many solutions • An identity is true for every value of the variable. When solving you will arrive at something that looks Like 11=11 or 3=3 9 2 7 5 9 +-= + x x x You Try! 10 5 ) 2 ( 5-=-x x 17 5 17 3 + = + x x Homework # __ • Page 91 (27-33 odd) & • Page 98 (3, 9, 10, 28-32even, 35)...
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