Question

Rezolvati in Z ecuatiile -7(x-3)=-14
-4(x-2)=12
-3(x+1)=-6
2(2x-3)=-10
3(2x-3)=-39
2(x-8)+4=-6
-5(x-3)+7=2
-6(x+7)+3x=-42

Answer 1

1. x=-4
2. x=18
3. x=-4
4. x=-11
5. x=-41
6. x=-4
7. x=-3
8. x=4.25

Answer 2

1. -4x+8=12=>-4x=4=>-x=1=>x=-1
2. -3x-3=-6=>-x-1=-2=>-x=-1=>X=1
3.4x-6=-10=>4x=-4=>X=-1
4.6x-9=-39=>6x=30=>x=5
5.2x-12=-6=>2x=6=>x=3
6. -5x+15+7=2=>-5x=-20=>x=4
7.-6x-42+3x=-42=>3x=0
Am uitat de primul...