1. Solving equations with variable on both sides Part 1

2. -9 +2X = 5X + 12 -2X -9 = 3X + 12 -12 -21 = 3X 33 X = -7

3. -5 – X = 4X - 15 1 +1X -5 = 5X - 15 +15 10 = 5X 55 X = 2

4. 12X + 3 = 4X + 27 - X 12X + 3 = 3X + 27 -3X 9X + 3 = 27 -3 9X = 24 99 X = 2.6 1

5. 0 + 3X = 5X - 10 -3X 0 = 2X - 10 +10 10 = 2X 22 X = 5

6. Pg. 157 4 – 16 even

7. 8 – (2 – 2X) = -4X + 3(4X + 5) 8 -2 + 2X = -4X + 12X + 15 6 + 2X = 8X + 15 -2X 6 = 6X + 15 -15 -9 = 6X 66 X = - 1.5

8. 2 – 15n = 5(-3n + 2) 2 – 15n = -15n + 10 +15n 2 = 10 2 can’t equal 10 so this equation has no solution

9. 5(1 + 4m) = 2(2.5 + 10m) 5 + 20m = 5 + 20m -20m 5 = 5 5 will always equal 5 so this equation has all solutions