Answer: it may or may not be 10
Step-by-step explanation:
following PEMDAS i got this
(-3×5)(-4+12÷4×2)-9+14÷2×7
parentheses first in order of how it appears starting from the left: (-3 x 5) = -15
= -15(-4+12÷4x2)-9+14÷ 2x7
then next set of parentheses: (-4 + 12 ÷ 4 x 2) = 2
= -15 x 2-9+14 ÷ 2x7
next multiply and divide, again from left to right: -15 x 2 = -30
= -30-9+14 ÷ 2x7
multiply and divide the next set in order form left to right again: 14 ÷ 2 x 7 = 49
= -30-9+49
add and subtract, also from left to right: -30 - 9 + 49 = 10
=10