5x + 3x + 2 = 20 Bellwork #1 of 2 a.) combine the x terms b.) subtract 2 from both sides c.) divide both sides by 8 What did you end up with??? x = 9/4

2(x + 3) = 25 Bellwork #2 of 2 a.) use the distributive property b.) subtract 6 from both sides c.) divide both sides by 2 What did you end up with??? x = 19/2

Bellwork Find the BFS Subtract 2x 1.) 3x + 6 = 2x -7 2.) 8x = 64 3.) 3x + 5x = 17 4.) 5x + 6 = 7 5.) -2x + 6 = -x 6.) 3x + 6 +x = 5 Divide 8 CLT Subtract 6 Add 2x CLT

Solve the following Equations Show your work 5.) 10x = 100 x = 10 6.) 256 = 16c 16 = c

Solve the following Equations Show your work 7.) 1/2x = -40 x = -80 8.) 3/4L = 75 L = 100 9.) -6x = -36 x = 6 10.) x = 2 4 x = 8 11.) c = 15 7 c = 105

5x + 3x + 2 = 20 Bellwork #1 of 2 a.) combine the x terms b.) subtract 2 from both sides c.) divide both sides by 8 What did you end up with???

2(x + 3) = 25 Bellwork #2 of 2 a.) use the distributive property b.) subtract 6 from both sides c.) divide both sides by 2 What did you end up with???

5x + 3x + 2 = 20 Bellwork #1 of 2 a.) combine the x terms b.) subtract 2 from both sides c.) divide both sides by 8 What did you end up with??? x = 9/4

2(x + 3) = 25 Bellwork #2 of 2 a.) use the distributive property b.) subtract 6 from both sides c.) divide both sides by 2 What did you end up with??? x = 19/2

To apply the 4 steps for solving equations to actual problems. Today’s Objective To apply the 4 steps for solving equations to actual problems. Get out your 4 steps. They are in your notes!!!

4 steps for solving an equation 1.) Simplify each side of the equation 2.) Get the Variables together first 3.) Get the Whole Numbers together 4.) Get the variable by Itself

1.)Solve: 3x - 7 = 2x + 5 3x - 7 = 2x + 5 3x-2x - 7 = 2x -2x+ 5 x - 7 = 5 x - 7 + 7 = 5 + 7 x = 12

1.) Check: 3x - 7 = 2x + 5 3x - 7 = 2x + 5 3(12) - 7 = 2(12) + 5 36 - 7 = 24 + 5 29 = 29 True

2.) Solve: 3 + a = -2 3 + a = -2 3 - 3 + a = -2 - 3 a = - 5

2.) Check: 3 + a = -2 3 + a = -2 3 + -5 = -2 -2 = -2 True

3.)Solve: 5x + 3(x + 4) = 28 5x + 3(x + 4) = 28 5x + 3x + 12 = 28 8x + 12 = 28 8x + 12 - 12 = 28 -12 8x = 16 8x/8 = 16/8 x = 2

5x + 3(x + 4) = 28 5(2) + 3(2 + 4) = 28 10 + 3(6) = 28 10 + 18 = 28 3.)Check: 5x + 3(x + 4) = 28 5x + 3(x + 4) = 28 5(2) + 3(2 + 4) = 28 10 + 3(6) = 28 10 + 18 = 28 28 = 28 True

Now you Solve and Check the following 6x + 5 = 7x - 3 6x - 6x + 5 = 7x - 6x -3 5 = x - 3 5 + 3 = x - 3 + 3 8 = x

48 + 5 = 56 - 3 53 = 53 Check: 6x + 5 = 7x - 3 6 (8) + 5 = 7(8) - 3 True

Now you Solve and Check the following 8 - 5x = 2 - 6x 8 - 5x + 6x = 2 -6x+ 6x 8 +x = 2 8 - 8 + x = 2 - 8 x = -6

8 - 5(-6) = 2 - 6(-6) 8 + 30 = 2 + 36 38 = 38 Check: 8 - 5x = 2 - 6x True

classwork With a partner, answer the questions on “Communicating about Algebra” on the bottom of page 131.

classwork You must use a separate sheet of paper for worksheet 3-2! Do worksheet 3-2 (1 -24) homework page 132 (5-25 ) (Show your work)