Alg1 lesson 3 5

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Solve 3x + 8 = 6x + 2 -6x -6x -3x + 8 = 2 -8 -8 -3x = -6 -3 -3 x = 2 Check: 3(2) + 8 = 6(2) + 2 6 + 8 = 12 + 2 14 = 14

Solve . Answer: s = 5 Example 5-1a

Solve . 9f – 6 – 3f =3f + 7 – 3f 6f – 6 = 7 6f – 6 + 6 =7 + 6 6f = 13 6 6 f = 2 1/6 Example 5-1c

Solve: 3(5x – 5) = 2(4x + 3) 15x – 15 = 8x + 6 -8x -8x 7x – 15 = 6 +15 +15 7x = 21 7 7 x = 3

Divide each side by –8. Answer: q = 6 Solve Example 5-2a

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Alg1 lesson 3 5

1. Solve 3x + 8 = 6x + 2 -6x -6x -3x + 8 = 2 -8 -8 -3x = -6 -3 -3 x = 2 Check: 3(2) + 8 = 6(2) + 2 6 + 8 = 12 + 2 14 = 14

2. Solve . Answer: s = 5 Example 5-1a

3. Solve . 9f – 6 – 3f =3f + 7 – 3f 6f – 6 = 7 6f – 6 + 6 =7 + 6 6f = 13 6 6 f = 2 1/6 Example 5-1c

4. Solve: 3(5x – 5) = 2(4x + 3) 15x – 15 = 8x + 6 -8x -8x 7x – 15 = 6 +15 +15 7x = 21 7 7 x = 3

5. Divide each side by –8. Answer: q = 6 Solve Example 5-2a