oblicz X X=-2X
plisssss na zaraz
X = -2 x = 2
x = -2x
x + 2x = 0
3x = 0
x = 0 : 3
x = 0
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X = -2 x = 2
x = -2x
x + 2x = 0
3x = 0
x = 0 : 3
x = 0