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Expressions, Equations, Inequality By: :]

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BenchmarkBenchmark MA.7.10.3 Solve linear equations& inequalities with One (1) variable using algebraic methods, manipulative, or models. Assignment Number #20 Expressions, equations, &inequality

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DefinitionsDefinitions Expressions: A variable or combination of variables, numbers, &symbols that represents a mathematical relationship. Equations: A statement that two mathematical expressions are equal. Inequality: A mathematical sentence that compares two unequal expressions using: greater than, less than etc.

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ExamplesExamples An example of expressions is: 4r, 3x+2y An example of equations is: n+50=75 means that n+50 must equal 75. An example of ineqaulity is: x>2 X is a value greater than 2!

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Questions???Questions??? Cindy is 6 years older than Phil. In two years the sum of their ages will be 30. How old is Cindy? C=Cindy & P=Phil C=6+PC=6+P (C+2)+(P+2)=30(C+2)+(P+2)=30 (6+P+2)+(P+2)=30 2P+10=302P+10=30 2P=202P=20 P=10P=10 C=6+10C=6+10 C=16C=16 Cindy is 16 & Phil is 10. Check: (16+2) + (10+2) = 30

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Resources Definitions from: Math On Call Some Pictures from: Google Crazyy picture from Laulima Website!!! Special Thanks too………… Me:] Jamielynn:] Summer:] Mr.Imamura:p && everyone else

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