Question

Heei . Imi puteti rezolva aceste exerciti ca eu nu inteleg cum se fac ! :\ ..
   a.2x+3=7
   b.3x-2=5
   c.4x-1=9
   d.2(x+1)=-6
   e.3(x-2)=9
   f.5(x-2)=9
  g.3(x+1)=2(x-4)  
Va multumeesc !! 

Answer 1

Astea sunt ecuatii, sunt foarte simple. De exemplu prima o faci asa: 2x=7-3 
2x=4 
x=4/2
x=2

Answer 2

2x+3=7. 3x-2=5. 4x-1=9 2x=7-3. 3x=5+2. 4x=9+1 2x=4. 3x=7. 4x=10 X=4:2. X=7:3. X=10:4 X=2; X=F; X=F; 2(x+1)=6. 3(x-2)=9. 5(x-2)=9 X+1=6:2. X-2=9:3. Ex.asta nu e X+1=3. X-2=3. corect X=3-1. X=3+2 X=2; X=5 3(x+1)=2(x-4) 3x+3=2x-8 3x-2x=3+8 1x=11 X=11:1 X=11