Б. Упростите выражение. 1) 4a + 11a - (-2a) =

Solution:

• Combine like terms: \( 4a + 11a - (-2a) \).
• Distribute the negative sign: \( 4a + 11a + 2a \).
• Add the coefficients: \( (4 + 11 + 2)a \).
• \( 4 + 11 = 15 \).
• \( 15 + 2 = 17 \).

Answer: 17a