Răspuns:
To solve this equation, let's break it down step by step:
1. Start with the innermost parentheses:
\[6 + x\]
2. Then multiply 13 by the result from step 1:
\[13 \times (6 + x)\]
3. Add 78 to the result from step 2:
\[78 + 13 \times (6 + x)\]
4. Move to the next set of parentheses:
\[26 - 3\]
5. Divide the result from step 3 by the result from step 4:
\[\frac{78 + 13 \times (6 + x)}{26 - 3}\]
6. Multiply the result from step 5 by 2:
\[2 \times \frac{78 + 13 \times (6 + x)}{26 - 3}\]
7. Finally, subtract 7 from the result from step 6 and set it equal to 1993:
\[2 \times \frac{78 + 13 \times (6 + x)}{26 - 3} - 7 = 1993\]
Now, we can solve for \(x\).
