Simplify 9 + 3 (4a - 7) — 5a + 6 (1 point)
To simplify the expression, we can use the distributive property to simplify the terms inside the parentheses first.
9 + 3(4a - 7) - 5a + 6
= 9 + 12a - 21 - 5a + 6
= (12a - 5a) + (9 - 21 + 6)
= 7a - 6
Therefore, the simplified expression is 7a - 6.