Question

Rezolvati in R ecuatia :
2(x-1)+3(x+2)=5x+4
6-3(2-x)+4x=7-x
5+7(1-x)-5x=x-8

Answer 1

2(x-1) + 3(x+2) = 5x+4 =>2x-2+3x+6=5x+4=> 5x+4=5x+4=>x poate fi orice nr

6-3(2-x)+ 4x=7-x => 6- 6+3x+4x=7-x => 7x=7-x=>7x+x=7=> 8x=7=>x=7 supra 8

5+7(1-x)-5x=x-8=> 5+7 -7x-5x=x-8=>12-12x=x-8=>12+8=x+12x=>20=13x=>x=20 supra 13

P.S.Nu sunt sigura daca e corect,deci nu trebuie sa te iei neaparat dupa mine.Sper sa nu fi gresit