Solving Two Step Solving Two Step EquationsEquations

SWBAT solve two step algebraic SWBAT solve two step algebraic equations using properties of equality equations using properties of equality

Watch the demonstration and list Watch the demonstration and list the steps in the appropriate box.the steps in the appropriate box.

WrappingWrapping Put calculator in boxPut calculator in box Cut paperCut paper Folded paperFolded paper Taped paperTaped paper

UnwrappingUnwrapping Untaped paperUntaped paper Unfolded paperUnfolded paper Opened boxOpened box Took out calculatorTook out calculator

What was the difference?What was the difference?

Order of operationsOrder of operations ParenthesisParenthesis ExponentsExponents Multiplication/DivisionMultiplication/Division Addition/SubtractionAddition/Subtraction

Inverse order of Inverse order of operationoperation Addition/SubtractionAddition/Subtraction Multiplication/DivisionMultiplication/Division ExponentsExponents ParenthesisParenthesis

The steps were reversed or invertedThe steps were reversed or inverted

ExamplesExamples

6x – 16 = 86x – 16 = 8 3 - _3 - _xx_ = 1_ = 1 99 __5454_ = 6_ = 6

xx -7x -12 = 16-7x -12 = 16 __nn_ + 9 = 12_ + 9 = 12 33

ExamplesExamples

__6363_ = 9_ = 9

xx 21 = 8x + 521 = 8x + 5 34 = 10 + 4c34 = 10 + 4c Try the first 4 problems on your handoutsTry the first 4 problems on your handouts

b = 44b = 44 h = 15h = 15 r = -13r = -13 x = 11x = 11

In your groups try problems 1-6In your groups try problems 1-6

e = 3e = 3 b = -27b = -27 q = 55q = 55 g = 72g = 72 v = 126v = 126 x = -7x = -7