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2x-11x-6x+x=16-4-3-4
-14x=5
x=-5/14
b) 24-6x+10x-25=4x-4-12+3x
-6x+10x-4x-3x=-24+25-4-12
-3x=-15
x=-15:(-3)
x=5
c) 7-3x-4=x+1-2x-4
-3x-x+2x=-7+4+1-4
-2x=-6
x=-6:(-2)
x=3
d) 8x-20+9-6x=12
8x-6x=12+20-9
2x=23
x=11,5
e) w umowa zle, ne mash = w rownanie