5x-(2x-3y)=5x-2x+3y=3x+3y=3(x+y)
(4x+2)+(-x-1)=4x+2-x-1=3x-1
(0.1c-0.4c²)-(0.1c-0.5c²)=0.1c-0.4c²-0.1c+0.5c²=0.1c²
(17a+12b-14c)-(11a-10b-14c)=17a+12b-14c-11a-10b-14c=6a+2b-28c=2(3a+b-14c)
5x-(2x-3y)=5x-2x+3y=3x+3y=3(x+y)
(4x+2)+(-x-1)=4x+2-x-1=3x-1
(0.1c-0.4c²)-(0.1c-0.5c²)=0.1c-0.4c²-0.1c+0.5c²=0.1c²
(17a+12b-14c)-(11a-10b-14c)=17a+12b-14c-11a-10b-14c=6a+2b-28c=2(3a+b-14c)