Question

605. Решите уравнения: 1) 2/7х = 1 = 1 , 2)9х = 1 , 3)1 целая 5/8 х =1, 4)1/2х=1, 5) 7/15х=1 , 6) 3 целых 2/5х = 1 , 7)100х =1 , 8)2/13х = 1.Можно полностью решения даю 10 баллов❤​

Answer 1

Ответ: 1) 7/2 ;2)1/9; 3)8/13; 4)2; 5) 2 целые 1/7; 6) 5/17; 7)1/100; 8) 6 целых 1/2

Пошаговое объяснение:

1) 2/7x=1

Преобразуйте произведение одночленов в дробь

2x/7=1

Чтобы устранить знаменатели, умножьте все члены уравнения на одно и то же число

7*2x/7=7

Сократите знаменатель

2x=7

x=7/2=3 целых 1/2

Далее все номера по аналогии!

2) 9x=1

x=1/9

3) 1 целая 5/8 х =1  это (1*8+5)

13/8x=1

13x/8=1

8*13x/8=8

13x=8

x=8/13

4) 1/2x=1

1x/2=1

2*1x/2=2

1x=2

x=2

5) 7/15x=1

7x/15=1

15*7x/15=15

7x=15

x=15/7=2 целые 1/7

6) 3 целых 2/5x = 1

17/5x=1

17x/5=1

5*17x/5=5

17x=5

x=5/17

7) 100x=1

x=1/100

8) 2/13x=1

2x/13=1

13*2x/13=13

2x=13

x=13/2= 6 целых 1/2

Answer 2

Solving the Equations:

1) 2/7x = 1 - To solve for x, we can multiply both sides by 7/2 to isolate x. - Multiplying both sides by 7/2, we get: x = 7/2

2) 9x = 1 - To solve for x, we can divide both sides by 9. - Dividing both sides by 9, we get: x = 1/9

3) 1 5/8x = 1 - To solve for x, we can subtract 1 from both sides and then multiply by the reciprocal of 1 5/8. - Subtracting 1 from both sides, we get: 5/8x = 0 - Multiplying by the reciprocal of 5/8, we get: x = 0

4) 1/2x = 1 - To solve for x, we can multiply both sides by 2. - Multiplying both sides by 2, we get: x = 2

5) 7/15x = 1 - To solve for x, we can multiply both sides by 15/7. - Multiplying both sides by 15/7, we get: x = 15/7

6) 3 2/5x = 1 - To solve for x, we can subtract 3 from both sides and then multiply by the reciprocal of 3 2/5. - Subtracting 3 from both sides, we get: 2/5x = -2 - Multiplying by the reciprocal of 2/5, we get: x = -10

7) 100x = 1 - To solve for x, we can divide both sides by 100. - Dividing both sides by 100, we get: x = 1/100

8) 2/13x = 1 - To solve for x, we can multiply both sides by 13/2. - Multiplying both sides by 13/2, we get: x = 13/2

I hope this helps! If you have any more questions or need further assistance, feel free to ask.