56:х=(10+6):2. Х-340:10=12•5. 484:4+х=210

56:x = (10+6):2 56:x = 16:256:x = 8x = 56:8x = 7 x - 340:10 = 12*5 x - 34 = 60x = 60 + 34x =94 484:4 + x = 210 121 + x = 210x = 210 - 121 x = 89