Odpowiedzi

2009-11-21T23:59:26+01:00
2(x+1)=4(x-2)
2x+2 = 4x-8
-2x = -10 /:(-2)
x=5
2009-11-21T23:59:42+01:00
2(x+1)=4(x-2)
2x+2=4x-8
2x-4x=-8-2
-2x=-10 /:(-2)
x=5
2009-11-21T23:59:45+01:00
2(x+1) = 4(x-2)
2x + 2 = 4x - 8 / -4x i / -2
-2x = -10 / : (-2)
x = 5

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