Question

Am nevoie de exercițiul 1 URGENT

Answer 1

a)2(x+1)=8

2x+2=8

2x=8-2

2x=6/2

x=3

b) 3(x-2)=2x+5

3x-6=2x+5

3x-2x=5+6

x=11

c)5(2x-4)=3(4x+2)

10x-20=12x+6

10x-12x=6+20

-2x=26/·(-1)

2x=-26/2

x= -13

d)x-2(x+1)=2x

x-2x-2=2x

x=2

ETC