Автор - jisoo21

решите уравнения:
(1 1/12 + 3,75) - (-х) =4,5;
-(5 2/3-1,6) - х = 6 1/3;
Х-(7 5/9 - 5 1/6)=-8 1/14;
Х - (-4,6+ 3 4/7) = - 8 1/14;​

Ответ

Автор - tatsach

Ответ:

Пошаговое объяснение:

1.(1 1/12+3,75)-(-х)=4,5

1 1/12+3,75+х=4,5

х=4.5-3.75-1 112

х=4 12-3 34-1 112

х=4 612-3 912-1 112

х=-412=-13

2.-(5 2/3-1,6)-х=6 1/3

-5 23+1.6-х=6 13

х=1.6-5 23-6 13

х=1.6-12

х=-10.4

3.х-(7 5/9-5 1/6)=-3,5

х-7 59+5 16=-3.5

х=-3.5+7 59-5 16

х=-3 12+7 59-5 16

х=-3 918+7 1018-5 318

х=-1 19

4.х-(-4,6+3 4/7)=-8 1/14

х+4.6-3 47=-8 114

х=-8 114+3 47-4.6

х=-8 114+4 814-4.6

х=-4 12-4 35

х=-4 510-4 610

х=-9 110

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