Упростите 2x-3+(5-6x-(-3x))
2х - 3 + (5 - 6х - (-3х)) = 2х - 3 + ( 5 - 6х + 3х) = 2х - 3 + 5 - 6х + 3х = 2 - х.
2x-3+(5-6x+3x)=2x-3+(5-3x)=2x-3+5-3x=-x+2=2-x