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b)x=-1
c)x=1
2x-3=3
2x=6/2
x=3
b)
8x+7=4x + 3
8x - 4x = 3 - 7
4x = -4/4
x=-1
c/
3(1-x)=0
3 - 3x = 0
-3x = -3
x =1
2x = 3+3
2x = 6
x = 3
b) 8x + 7 = 4x+3
8x-4x = 3-7
4x = -4
x = -1
c)3(1-x)=0
3 - 3x = 0
- 3x = - 3
x = 1
a więc 3 a, 1 c, -1 b