a fost răspuns

7-8x=2x-23
9x-7=2(x+14)
4(x-1)=3(x+5)

Răspuns :

CosmoteRoask

Răspuns:

7-8x=2x-23

-8x-2x=-23-7

-10x=-30

x=3

9x-7=2x+28

9x-2x=28+7

7x=35

x=5

4x-4=3x+15

4x-3x=15+4

x=19

Jskskskskask

7-8x=2x-23

-8x-2x=-23-7

-10x=-30

x=3

9x-7=2(x+14)

9x-7=2x+28

9x-2x=28+7

7x=35

x=5

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

4x-4=3x+15

4x-3x=15+4

x=19