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5) 5(x+4)=6(x-2)
5x+20=6x-12
-x=-32 /(-1)
x=32
6)
x-6 \ x+2 =0
x-6 =0
x=6
D; x+2≠0
x≠ -2
7) (2x-2) \ 4 - 5\8x=x+1\2 /*8
2(2x-2)-5x=8x+4
4x-4-5x=8x+4
-9x =8 /(-9)
x= -8\9
8) x² =14 /√
x=√14 lub x=-√14
9) 1\x-1 = -3
1= -3x+3
3x= 2 /3
x=2\3