Răspuns: a)2X+4(X-1)=5X2X+4X-4=5X6X-4=5X6X=5X+46X-5X=4X=4
b) 6-3-(1-X) +2(X-5)=36-3-1+X+2(X-5)=36-3-1+X+2X-10=3-8+X+2X=3-8+3X=33X=3+83X=11X=11/35X-4(2x+3)=-3-2(4-5X)
g) 5X-8X-12=3-2(4-5X) 5X-8X-12=3-8+10X-3X-12=3-8+10X-3X-12=-5+10X-3X-10X-12=-5-3X-10X= -5+12-13X=-5+12-13X=7X= 7/3 Poza este pentru ex. g.
Sper că te-am ajutat!!