Question

Помогите

1) 1/3x+1/4+1/6x=1 1/14

2) (x+8 11/16)-4 4/5=7 13/20

Answer 1

Ответ:

Пошаговое объяснение:

1) 1/3x+1/4+1/6x=1 1/14;

1/2x=1 1/14 - 1/4;

1/2x=23/28;

x=23/28:1/2;

x=23/14=1 9/14.

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2) (x+8 11/16)-4 4/5=7 13/20;

x+8 11/16 = 7 13/20+4 4/5;

x+8 11/16=11 29/20

x=12 9/20-8 11/16;

x=301/80;

x=3.7625.

Answer 2

1) 1/3х + 1/4 + 1/6х = 15/14

28х + 21 + 14х = 90

42х + 21 = 90

42х =90-21

42х = 69

х = 23/14

2) ( х + 139/16 ) - 24/5 = 153/20

х + 139/16 - 23/5 = 153/20

х + 311/80 = 153/20

х = 153/20 - 311/80

х = 301/80