Question

717 – 84b + 88c (d+с) × 25 + 34d564b + (а - b) × 26(d + с) - 34 – 42db = 2C = 5d=7a = 6Даю 20 баллов ​

Answer 1

Ответ:717b - 84b + 88c = 633b + 88c b = 2 и c = 5 633 * 2 + 88 * 5 = 1266 + 440 = 1706

Пошаговое объяснение:

Answer 2

It seems like you've provided a mathematical expression along with some equations involving variables. If I understand correctly, you want to solve this system of equations for the variables a, b, c, d, and с. Here's the system of equations you've provided:

1. 717 – 84b + 88c + (d + с) × 25 + 34d564b + (а - b) × 26(d + с) - 34 – 42db = 2c
2. 2c = 5d
3. 5d = 7a
4. 7a = 6c

Please note that the variables you've used are represented in different scripts (Cyrillic and Latin letters). To make it easier to follow, let's use Latin letters for all the variables. The equations can be rewritten as:

1. 717 - 84b + 88c + 25(d + c) + 34d564b + 26(a - b)(d + c) - 34 - 42db = 2c
2. 2c = 5d
3. 5d = 7a
4. 7a = 6c

Let's proceed to solve the equations:

From equation (2), we have: c = 5d / 2

From equation (3), we have: d = 7a / 5

Substitute d from equation (3) into equation (1): 717 - 84b + 88c + 25(d + c) + 34d564b + 26(a - b)(d + c) - 34 - 42db = 2c

Substitute c from equation (2) into the above equation: 717 - 84b + 88(5d / 2) + 25(d + 5d / 2) + 34d564b + 26(a - b)(d + 5d / 2) - 34 - 42db = 2(5d / 2)

Simplify the equation and solve for b in terms of d: -84b + 220d + 25(7d / 2) + 26(a - b)(7d / 2) - 34 - 42db = 5d

Simplify further: -84b + 220d + 87.5d + 91ad - 91bd - 34 - 42db = 5d

Combine like terms: -84b - 91bd - 42db + 220d + 87.5d + 91ad = 5d + 34

Factor out b and d terms: b(-84 - 91d - 42d) + d(220 + 87.5 + 91a) = 5d + 34

Simplify: b(-217d - 84) + d(307.5 + 91a) = 5d + 34

Solve for b: b = (5d + 34 - d(307.5 + 91a)) / (-217d - 84)

Substitute the expression for d from equation (3) into the above expression for b.

Similarly, solve for a in terms of d and substitute the expressions for a and d from equations (3) and (2) into the equation for c from equation (2).

Unfortunately, due to the complexity of the equations, it's not straightforward to provide a simple solution. You might need to use numerical methods or a computer algebra system to solve this system of equations accurately.