Question

упростите выражение 2(x-1)-3(x-2)+x

Answer 1

2(x-1)-3(x-2)+x=2х-2-3х+6=-х+4=4-х

Answer 2

2(x-1)-3(x-2)+x=2x-2-3x+6+x=2x-3x+x-2+6=0-2+6=4