Доброго ранку!
4 + x + 3x = 32
4 + 4х = 32
4х = 32 - 4
4х = 28
х = 28 : 4
х = 7
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Доброго ранку!
4 + x + 3x = 32
4 + 4х = 32
4х = 32 - 4
4х = 28
х = 28 : 4
х = 7