Question

Rezolvati in multimea numerelor intregi ecuatiile,aveti poza cu exercitiile​

Answer 1

Răspuns:

ai raspunsul in atasament

Answer 2

Răspuns:

2(4x+5)= -3x+32

8x+10= -3x+32

8x+3x=32-10

11x=22=>x=22/11=>x=2

__________

3(-2x+7)=-5x+23

-6x+21= -5x+23

-6x+5x=23-21

-x=2=>x= -2

_________

-3(-x+1)=3x-3

3x-3=3x-3

0=0

___________

-2(x-4)+6=-4x+5(x-2)

-2x+8+6=-4x+5x-10

-2x+4x-5x=-10-14

-3x=-24=>x=24:3=>x=8

___________

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

5-3x-6=2x+3x+15

5-6-15=5x+3x

x=-16:8=>x =-2

___________

5+4(1-x)=3x+9

5+4-4x=3x+9

9-9=3x+4x

7x=0=>x=0