Question

simply
$15 - ( - 3)(4 - 6 - 2) \div 3(5 + ( - 3) \times ( - 6))$

Answer 1

15 - (-3)(4-6-2) divided by 3 (5 + (-3)*(-6))

15 + 3* -4 divided by 3 ( 5 + 18)
15 + 3 * (-4 divided by 3) * 23
15 + 3 * -4/3 * 23
15 + -12/3 * 23
15 + -4*23
15 - 92 = -77
Hope it helps