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Guías de estudio > Prealgebra

Summary: Solving one step Equations Using Integers

 

Key Concepts

  • How to determine whether a number is a solution to an equation.
    • Step 1. Substitute the number for the variable in the equation.
    • Step 2. Simplify the expressions on both sides of the equation.
    • Step 3. Determine whether the resulting equation is true.
      • If it is true, the number is a solution.
      • If it is not true, the number is not a solution.
  • Properties of Equalities
    Subtraction Property of Equality Addition Property of Equality
    For any numbers [latex]a,b,c[/latex], if [latex]a=b[/latex] then [latex]a-c=b-c[/latex]. For any numbers [latex]a,b,c[/latex], if [latex]a=b[/latex] then [latex]a+c=b+c[/latex].
  • Division Property of Equality
    • For any numbers [latex]a,b,c[/latex], and [latex]c\ne 0[/latex]If [latex]a=b[/latex] , then[latex]\frac{a}{c}=\frac{b}{c}[/latex] .

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