Solving Linear Equations I — Solutions

1. Balancing Scales

   1. ? + 3 = 15: ? = 12 ▶ View Solution
   2. 7 + ? = 14: ? = 7 ▶ View Solution
   3. x = 10 ▶ View Solution
   4. y = 15 ▶ View Solution

2. Inverse Operations

   1. Inverse of add 7: subtract 7 ▶ View Solution
   2. Inverse of subtract 12: add 12 ▶ View Solution
   3. Inverse of multiply by 4: divide by 4 ▶ View Solution
   4. Inverse of divide by 5: multiply by 5 ▶ View Solution

3. Solving One-Step Equations (Addition and Subtraction)

   1. x = 11 ▶ View Solution
   2. m = 16 ▶ View Solution
   3. p = 12 ▶ View Solution

4. Solving One-Step Equations (Multiplication and Division)

   1. y = 7 ▶ View Solution
   2. k = 9 ▶ View Solution
   3. t = 12 ▶ View Solution

5. Bags of Marbles

   1. Equation: 2b + 3 = 15 ▶ View Solution
   2. After subtracting 3: 2b = 12 ▶ View Solution
   3. b = 6 ▶ View Solution

6. Boxes and Blocks

   1. Equation: 3x + 2 = 14 ▶ View Solution
   2. After subtracting 2: 3x = 12 ▶ View Solution
   3. x = 4 ▶ View Solution

7. Solving Two-Step Equations (Guided)

   1. After subtracting 3: 2x = 10 ▶ View Solution
   2. x = 5 ▶ View Solution

8. Solving Two-Step Equations

   1. m = 5 ▶ View Solution
   2. k = 4 ▶ View Solution
   3. p = 5 ▶ View Solution

9. Working Backwards

   1. Equation: 3n + 2 = 20 ▶ View Solution
   2. n = 6 ▶ View Solution

10. Solving from Context

    1. C = 1.50k + 2.50 ▶ View Solution
    2. Equation to solve: 1.50k + 2.50 = 11.50 ▶ View Solution
    3. k = 6 km ▶ View Solution