Explanation:
The initial expression is:
-a + 11b - 7 - 2a - b
The terms -a and -2a are like terms. In the same way, 11b and -b are like terms.
So, using the distributive property, we get:
-a + 11b - 7 - 2a - b
-a - 2a + 11b - b - 7
(-1 - 2)a + (11 - 1)b - 7
-3a + 10b - 7
Therefore, the simplified expression is: -3a + 10b - 7.
Answer: -3a + 10b - 7
