If ' stands for 'x', 'x' stands for '+','+' stands for '' and '' stands for '-', then what is the value of 20 + 2-3x8+2=?

To solve the problem, we need to first decode the symbols according to the given instructions. Here's the translation:

- `'` stands for `x` (multiplication)
- `x` stands for `+` (addition)
- `+` stands for ` ` (no operation)
- ` ` stands for `-` (subtraction)

The given expression is:  
\[ 20 + 2 - 3x8 + 2 = ? \]

Translating the symbols:

1. \( + \) is translated as " " (no operation).
2. \( 2 - 3x8 + 2 \) is translated as \( 2 \times 3 + 8 - 2 \).

So the expression becomes:
\[ 20 \times 2 - 3 + 8 \times 2 = ? \]

Now, let's solve it step by step:

1. \( 20 \times 2 = 40 \)
2. \( 3 + 8 = 11 \)
3. \( 11 \times 2 = 22 \)

Subtracting from the result:
\[ 40 - 22 = 18 \]

Thus, the value of the expression is **18**.

Would you like more details, or do you have any questions?

Here are some related questions to consider:
1. How do you decode symbol-based expressions generally?
2. How would the order of operations affect this type of problem?
3. What happens if the symbols had different meanings?
4. How would parentheses change the solution?
5. Can you create your own problem using the same symbol rules?
6. How do associative properties work in mathematics?
7. How does this problem relate to logic puzzles?
8. How does changing one symbol affect the outcome?

**Tip:** Always perform operations in the correct order to avoid mistakes in symbol-based problems.

Learn how to decode a symbol-based math problem involving basic arithmetic operations. Follow a step-by-step solution to translate symbols and perform the correct operations to find the answer. Suitable for Grades 7-9.

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