Question

Реши уравнения и запиши ответ 1) z + 5 7/15 = 6 z =2) 14 3/8 + y = 20 7/8 y=Пожалуйста, СРОЧНО помоготее!!❤​

Answer 1

$1)z + 5 \frac{7}{15} = 6 \\ z + \frac{82}{15} = 6 \\ \\ z = 6 - \frac{82}{15} \\ z = \frac{8}{15}$

$14 \frac{3}{8} + y = 20 \frac{7}{8} \\ \\ \frac{115}{8} + y = \frac{167}{8} \\ \\ y = \frac{167}{8} - \frac{115}{8} \\ \\ y = \frac{13}{2} \\ y = 6 \frac{1}{2}$

Answer 2

1) To solve the equation z + 5 + 7/15 = 6 + z + 2, we can start by simplifying both sides of the equation.

On the left side, we have z + 5 + 7/15. To add fractions, we need to find a common denominator. In this case, the common denominator is 15. So, we can rewrite 5 as 75/15.

Now, we can add the fractions: z + 75/15 + 7/15 = 6 + z + 2.

Combining like terms, we have z + 82/15 = 8 + z.

Next, we can subtract z from both sides of the equation to isolate the variable: z - z + 82/15 = 8 + z - z.

Simplifying further, we get 82/15 = 8.

Since the left side and right side of the equation are not equal, there is no solution to this equation.

2) To solve the equation 14 + 3/8 + y = 20 + 7/8 + y, we can start by simplifying both sides of the equation.

On the left side, we have 14 + 3/8. To add fractions, we need to find a common denominator. In this case, the common denominator is 8. So, we can rewrite 14 as 112/8.

Now, we can add the fractions: 112/8 + 3/8 + y = 20 + 7/8 + y.

Combining like terms, we have 115/8 + y = 20 + 7/8 + y.

Next, we can subtract y from both sides of the equation to isolate the variable: 115/8 + y - y = 20 + 7/8 + y - y.

Simplifying further, we get 115/8 = 20 + 7/8.

To add whole numbers and fractions, we need to find a common denominator. In this case, the common denominator is 8. So, we can rewrite 20 as 160/8.

Now, we can add the fractions: 115/8 = 160/8 + 7/8.

Combining like terms, we have 115/8 = 167/8.

Since the left side and right side of the equation are not equal, there is no solution to this equation.

Therefore, both equations have no solutions.