Answer:
65
Explanation:
use the order of operations: PEMDAS parentheses, exponents (if any), multiplication, division, addition, and subtraction in that exact order.
42 - 10 + (9 + 6x4) =
parentheses: 6x4=24, 24 + 9 = 33
outside parentheses: 42-10 = 32
32 + 33 = 65