Question

Упростите выражение:
1) х-(2х-(4х+3))
2) 8m-(4n-(6m+(3n+5m)))

Answer 1

x-(2x-4x-3)=x+2x+3=3x+3
8m-(4n-(6m+3n+5m)=8m-(4n -11m-3n)=8m-n+11m=19m-n

Answer 2

1)..........
x-(-2x-3)=-x-2x+3=-x+3
вроде так

Answer 3

упс

Answer 4

не так я