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Vocabulary presentation equations

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Vocabulary for MA7A33 & MA7A34

Vocabulary for MA7A33 & MA7A34

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  • 1. Solving Equations Vocabulary words
  • 2. EquationA mathematical sentence that uses an equal signto show that two expressions are equal. X – 26 = 3 is an equation.11/5/2012 2
  • 3. SolutionThe value that makes the equation true.The solution to the problemx-3 = 7 is 10.solution11/5/2012 3
  • 4. Inverse operationsOperations that “undo” each other.The inverse operation ofaddition is subtraction.11/5/2012 4
  • 5. Multiplication property of equalityWhen you multiply each side of the equation bythe same non-zero number, it results in anequivalent equation.If I multiply 2/5 on one side of theequation and multiply 2/5 on theother side of the equation, I amshowing the Multiplicationproperty of equality. 11/5/2012 5
  • 6. Two-step equationAn equation that contains two different operations.The equation 2x - 3 = 9 is a two-step equation.11/5/2012 6
  • 7. TermsThe coefficients, variables and constants thatmake up an equation.In the expression3x + 4y + 7 - 12 + 10x + 6y…3x, 4y, 7, -12, 10x, 6y are allterms. 11/5/2012 7
  • 8. Addition Property of EqualityWhen you add each side of the equation by thesame nonzero number, it results in an equivalentequation.If I add 4 to one side of theequation and add 4 to the otherside of the equation, I amshowing the Addition propertyof equality. 11/5/2012 8
  • 9. CoefficientThe number in front of a variable.The coefficients in the expression13x + 10y - 5 are 13 and 10 coefficient =3b b b b variable11/5/2012 9
  • 10. Division Property of EqualityWhen you divide each side of the equation by thesame nonzero number, it results in an equivalentequation.If I divide by -3 on one side of theequation and divide by -3 on theother side of the equation, I amshowing the Division propertyof equality.11/5/2012 10
  • 11. Equivalent EquationsTwo equations that have the same solution.The equations x + 10 = 20 andX = 10 are equivalentequations. 11/5/2012 11
  • 12. Like termsTerms that look alike involving variables andconstants.In the equation3x + 4y + 7 - 12 + 10x + 6y…3x and 10x, 4y & 6y, 7 & -12 areall like terms11/5/2012 12
  • 13. Subtraction Property of EqualityWhen you subtract each side of the equation bythe same nonzero number, it results in anequivalent equation.If I subtract 4 on one sideof the equation andsubtract 4 on the other sideof the equation, I amshowing the Subtractionproperty of equality.11/5/2012 13
  • 14. VariableAn unknown quantity that is represented by one ofthe 26 letters of the alphabet.In the equation 3x + 4 = 8, the xis the variable.11/5/2012 14
  • 15. 11/5/2012 15