1) х + (619 - 392) = 719 + 32х + 227 = 103х = 1039 - 22х = 812
2) 120 + 880 + х = 56 * 51000 + х = 280х = 2800 - 100х = 1800
1) х + (619 - 392) = 719 + 32
х + 227 = 103
х = 1039 - 22
х = 812
2) 120 + 880 + х = 56 * 5
1000 + х = 280
х = 2800 - 100
х = 1800