Pomozcie !!! daje naj :)
-2z-12=-3z-13
9x+3+21+6x
-2z+3z=-13+12
z=1
-2z + 3z = 12 - 13
z = -1
9x+3=21+6x
9x - 6x = 21 - 3
3x = 18 |: 3
x= 6
licze na naj :D
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-2z-12=-3z-13
-2z+3z=-13+12
z=1
-2z-12=-3z-13
-2z + 3z = 12 - 13
z = -1
9x+3=21+6x
9x - 6x = 21 - 3
3x = 18 |: 3
x= 6
licze na naj :D