10x + 4 - 2x = 3x +9 Rozwiąż
10x + 4 - 2x = 3x +9
10x-2x-3x=9-4
5x=5/5
x=1
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10x + 4 - 2x = 3x +9
10x-2x-3x=9-4
5x=5/5
x=1