Question

Раскрыть скобки и привести подобные члены:
2х+(3х+(4+х)) 2х+(3+(4-х)) 2х+(3-(4+х))

Answer 1

2х+(3х+(4+х))= 2х+(3х+4+х)=2х+3х+4+х=6х+4

2х+(3+(4-х))= 2х+(3+4-х)=2х+3+4-х=х+7

2х+(3-(4+х))= 2х+(3-4-х)=2х+3-4-х=х-1

Answer 2

2х+3х+4+х=6х+4

2х+3+4-х=х+7

2х+3-4-х=х-1