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14. 69 426-435: [363 : 3 - (b× 2 +
15. [41 536 + 9 x 43 - (2y + 6 x 8-5 × 2)] - 1 936 : 4 × 78 = 4 065.
c) y = 34;
d) y
a) y = 30;
b) y = 32;