х:3,57=21,23-12,32
х:3,57=8,91
х=8,91*3,57
х=31,8087
х : 3.57 + 12.32 = 21.23
х : 3.57 = 21.23 - 12.32
х : 3.57 = 8.91
х = 8.91 * 3.57
х = 31.8087
х:3,57=21,23-12,32
х:3,57=8,91
х=8,91*3,57
х=31,8087
х : 3.57 + 12.32 = 21.23
х : 3.57 = 21.23 - 12.32
х : 3.57 = 8.91
х = 8.91 * 3.57
х = 31.8087