Question

6*(14х+35)+7*(21-9х)=640 уравнения

Answer 1

Ответ:

1) раскрыть скобки

84х+210+147-63х=640

2) приводим подобные слагаемые

-21х+357=640

3) перегруппировываем

-21х=640-357

-21х=283

х=283/21

х=(в калькуляторе посчитай , я не успеваю , сори)

Answer 2

To solve the equation $6(14x + 35) + 7(21 - 9x) = 640$, you can follow these steps:

1. Distribute the terms inside the parentheses: $84x + 210 + 147 - 63x = 640$

2. Combine like terms: $21x + 357 = 640$

3. Subtract 357 from both sides of the equation: $21x = 283$

4. Divide both sides by 21 to solve for $x$: $x = \frac{283}{21}$

So, the solution to the equation is $x = \frac{283}{21}$, which can be simplified further if needed.