Solve the equations: x - 3 = 11, 2x = 10, x/6 = 2, and more.

Let's solve each of the given equations step by step. These are all linear equations in one variable, and we'll isolate $ x $ to find its value.

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3) $ x - 3 = 11 $

Add 3 to both sides:
$$
x = 11 + 3 = 14
$$
✔ Answer: $ x = 14 $

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4) $ x - 5 = 7 $

Add 5 to both sides:
$$
x = 7 + 5 = 12
$$
✔ Answer: $ x = 12 $

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5) $ 2x = 10 $

Divide both sides by 2:
$$
x = \frac{10}{2} = 5
$$
✔ Answer: $ x = 5 $

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6) $ \frac{x}{6} = 2 $

Multiply both sides by 6:
$$
x = 2 \times 6 = 12
$$
✔ Answer: $ x = 12 $

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7) $ 3x = 15 $

Divide both sides by 3:
$$
x = \frac{15}{3} = 5
$$
✔ Answer: $ x = 5 $

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8) $ 4x = 12 $

Divide both sides by 4:
$$
x = \frac{12}{4} = 3
$$
✔ Answer: $ x = 3 $

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9) $ \frac{x}{4} = 10 $

Multiply both sides by 4:
$$
x = 10 \times 4 = 40
$$
✔ Answer: $ x = 40 $

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10) $ x - 7 = 13 $

Add 7 to both sides:
$$
x = 13 + 7 = 20
$$
✔ Answer: $ x = 20 $

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11) $ x + 6 = 15 $

Subtract 6 from both sides:
$$
x = 15 - 6 = 9
$$
✔ Answer: $ x = 9 $

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12) $ 4 + x = 9 $

Subtract 4 from both sides:
$$
x = 9 - 4 = 5
$$
✔ Answer: $ x = 5 $

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13) $ 7 = x - 6 $

Add 6 to both sides:
$$
7 + 6 = x \Rightarrow x = 13
$$
✔ Answer: $ x = 13 $

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14) $ 14 = x + 5 $

Subtract 5 from both sides:
$$
x = 14 - 5 = 9
$$
✔ Answer: $ x = 9 $

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✔ Final Answers:

| Problem | Answer |
|--------|--------|
| 3) | $ x = 14 $ |
| 4) | $ x = 12 $ |
| 5) | $ x = 5 $ |
| 6) | $ x = 12 $ |
| 7) | $ x = 5 $ |
| 8) | $ x = 3 $ |
| 9) | $ x = 40 $ |
| 10) | $ x = 20 $ |
| 11) | $ x = 9 $ |
| 12) | $ x = 5 $ |
| 13) | $ x = 13 $ |
| 14) | $ x = 9 $ |

Let me know if you'd like these checked or explained further!