To simplify the expression, we will first distribute the terms in each set of parentheses:
(8a - 1)(-6) = -48a + 6(3a - 7)(-3) = -9a + 21
Now we will substitute these simplified expressions back into the original expression:
(-48a + 6) + (-9a + 21)
Next, we will combine like terms:
-48a - 9a + 6 + 21= -57a + 27
Therefore, (8a-1)(-6) + (3a-7)(-3) simplifies to -57a + 27.
To simplify the expression, we will first distribute the terms in each set of parentheses:
(8a - 1)(-6) = -48a + 6
(3a - 7)(-3) = -9a + 21
Now we will substitute these simplified expressions back into the original expression:
(-48a + 6) + (-9a + 21)
Next, we will combine like terms:
-48a - 9a + 6 + 21
= -57a + 27
Therefore, (8a-1)(-6) + (3a-7)(-3) simplifies to -57a + 27.