Question

1)8-x=3 7/9 2)6 1/12-k= 2 5/12 3)3+a=5/9 4)x+2 3/7=5 1/7 5)

Answer 1

Ответ:

.

Пошаговое объяснение:

1.х=8-34\9

х=72\9-34\9

х=38\9

х=4 2\9

2.к=73\12-29\12

к=44\12

к=3 2\3

3.а=5\9-3

а=5\9-27\9

а=-22\9

а=-2 4\9

4.х=36\7-17\7

х=19\7

х=2 5\7

Answer 2

It seems like some parts of your question are missing or incomplete. However, I will do my best to solve the equations you provided:

1. 8 - x = 3 7/9

To solve for x, we need to isolate x on one side of the equation. First, let's convert the mixed number 3 7/9 to an improper fraction:

3 7/9 = (3 * 9 + 7) / 9 = 34 / 9

Now, the equation becomes:

8 - x = 34/9

To isolate x, subtract 8 from both sides of the equation:

8 - x - 8 = 34/9 - 8

-x = 34/9 - 72/9

-x = -38/9

Now, multiply both sides by -1 to solve for x:

x = 38/9

2. 6 1/12 - k = 2 5/12

Let's convert the mixed number 2 5/12 to an improper fraction:

2 5/12 = (2 * 12 + 5) / 12 = 29 / 12

Now, the equation becomes:

6 1/12 - k = 29/12

To isolate k, subtract 6 1/12 from both sides of the equation:

6 1/12 - k - 6 1/12 = 29/12 - 6 1/12

-k = 29/12 - 73/12

-k = -44/12

Now, multiply both sides by -1 to solve for k:

k = 44/12 = 11/3

3. 3 + a = 5/9

To solve for a, subtract 3 from both sides of the equation:

3 + a - 3 = 5/9 - 3

a = 5/9 - 27/9

a = -22/9

4. x + 2 3/7 = 5 1/7

Let's convert the mixed numbers to improper fractions:

2 3/7 = (2 * 7 + 3) / 7 = 17 / 7 5 1/7 = (5 * 7 + 1) / 7 = 36 / 7

Now, the equation becomes:

x + 17/7 = 36/7

To isolate x, subtract 17/7 from both sides of the equation:

x + 17/7 - 17/7 = 36/7 - 17/7

x = 19/7

Please provide the missing or incomplete parts of the fifth equation if you need assistance with it.