1. 4-4 Two-Step Equations Standard : PFA Indicator: P4 Create visual representations of equation-solving processes that model the use of inverse operations

2. We are working in reverse (undoing) order of operations, so what steps will we do first? Add or Subtract Then? Multiply or divide (shoe then sock example)

3. 1)-2y - 7 = 3 +7 +7 +7 +7 -2y = 10 -2y = 10 -2 -2 -2 -2 y = -5 check: -2 (-5) -7 y = -5 check: -2 (-5) -7 10-7 = ?? 10-7 = ?? 2)-11 = 4 + 5r -4 -4 -4 -4 -15 = 5r -15 = 5r 5 5 5 5 -3 = r check: 4 + 5(-3) -3 = r check: 4 + 5(-3) 4+ -15 =?? 4+ -15 =??

4. Step 1: Define a variable: g is the # of games I can bowl Step 2: Write the equation 6 + 3.50g = 20 Step 3: Solve -6 -6 3.50g = 14 3.50g = 14 3.5 3.5 3.5 3.5 g = 4 g = 4 Step4: Write sentence I can bowl 4 games for $20. After paying $6 for shoes Suppose you spend $6 to rent bowling shoes at The Alley. Each game costs $3.50. How many games can you bowl if you have $20 to spend?

5. You try 1)4x + 5 = 13 2)-3n - 8 = 7