6. Реши уравнения. с. 5 = 65 - 2
х: 12 = 100 - 28
78: a = 13 : 3
450 + y = 158 - 4
67 + a = 79.8
600 + y = 219 - 4
52 : x = 48 : 12
x + 230 = 450 + 210 + 70
х: 12 = 100 - 28
78: a = 13 : 3
450 + y = 158 - 4
67 + a = 79.8
600 + y = 219 - 4
52 : x = 48 : 12
x + 230 = 450 + 210 + 70
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