Answer:
The value of A is -4, and that of B is -10
Explanation:
We must carry out the indicated multiplication (and removal of parentheses) according to Order of Operations rules:
6x - 15 - 4x - 1 + 6 - 10x + 4x
Grouping like terms together, we get:
6x - 4x - 10 x + 4x - 15 -1 + 6
this, in turn, simplifies to:
-4x-10
The value of A is -4, and that of B is -10