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-3x+6=-9
-3x=-9-6
-3x=-15
x=5
B)1/2(4y+6)=3
2y+3=3
2y=0
0/0
-3(x-2)= -9
-3x+6=-9
-3x=-6-9
-3x=-15 |: -3
x=5
B)
1/2(4y+6)=3
2y+3=3
2y=-3+3
2y=0 |:2
y=0
Licze na najlepsze:).
-3x = -9-6
-3x = -15 /:(-3)
x = 5
b) 2y+3 = 3
2y = 3-3
2y = 0
równianie o ile dobrze pamiętam to sprzeczne lub nie oznaczone