Presentation on theme: "Solving One-Step Equations"— Presentation transcript:
1 Solving One-Step Equations Solving One-Step Equations - Sept. 15, 2010Solving One-Step EquationsSEI.3.AC.1SLE 1: Solve, with and without appropriate technology, multi-step equations and inequalities with rational coefficients numerically, algebraically and graphicallyStudents will be able to solve one- step equations.
2 Rules for Solving Equations We need to always remember that an equation is like a balance scale.Whatever we do to one side of the equal sign, we must do to the other side.x = 5x = 3– 2= – 2FHSEquations and Inequalities
3 Rules for Solving Equations We can add, subtract, multiply, or divide both sides of the equal sign by the same number.We want to perform the opposite operation from the one shown in the problem.The opposite of adding isThe opposite of subtracting isThe opposite of multiplying isAnd the opposite of dividing issubtractingaddingdividingmultiplyingFHSEquations and Inequalities
4 Equations and Inequalities Solving EquationsHere are some examples:x + 4 = 5– 4 = – 4x = 1x – 2 = 3+ 2 = +2x = 53x = 15x = 5FHSEquations and Inequalities