Répondre :
Pour résoudre ces équations, nous devons développer chaque expression :
1. \( P = 5 \times (a + 9) \)
\( P = 5a + 45 \)
2. \( L = 2 \times (a - 4) \)
\( L = 2a - 8 \)
3. \( A = 3 \times (10 + b) \)
\( A = 30 + 3b \)
4. \( U = 5 \times (6 - b) \)
\( U = 30 - 5b \)
En résumé :
- \( P = 5a + 45 \)
- \( L = 2a - 8 \)
- \( A = 30 + 3b \)
- \( U = 30 - 5b \)
1. \( P = 5 \times (a + 9) \)
\( P = 5a + 45 \)
2. \( L = 2 \times (a - 4) \)
\( L = 2a - 8 \)
3. \( A = 3 \times (10 + b) \)
\( A = 30 + 3b \)
4. \( U = 5 \times (6 - b) \)
\( U = 30 - 5b \)
En résumé :
- \( P = 5a + 45 \)
- \( L = 2a - 8 \)
- \( A = 30 + 3b \)
- \( U = 30 - 5b \)