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2010-04-08T18:09:17+02:00
2x-12=8+12x
-4=10x
x=-(10/4)-ułamek
x=-2,5
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2 3 2
2010-04-08T18:09:35+02:00
4(1/2x-3)=8+12x
4/2x - 12 = 8 + 12x
2x - 12x = 8 + 12
-10x = 20 /: (-10)
x = -2
2 3 2
2010-04-08T18:10:36+02:00
4(½x-3) = 8 + 12x
2x - 12 = 8 + 12x
-12 - 8 = 12x - 2x
-20 = 10x /:10
x=-2
1 1 1