Задание:
А) 5d=-85,6-3d б) 5b — 5b+1=1b+1 — - — - 6 9 2 3
Решение:
А) 5d=-85,6-3d8d+85,6=0d=-85,6/8d=-10,7 б) (5b) /6- (5b+1) /9=(1b) /2+1//3 (5//6) b- (5*b/9+1/9) -b/2- (1//3)=0 (5//6) b- (5//9) b+(1//9) -b/2- (1//3)=0 (5//18) b- (1//9) -b/2- (1//3)=0- (2//9) b- (1//9) — (1//3)=0- (2//9) b- (4//9)=0b=(4//9) / (- (2//9) b=-2// — черта дроби
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