Question

7•(13-х)=42 решить уравнение

Answer 1

13-х=42:7
13-х=6
х=13-6
х=7

Answer 2

Раскрываем скобки 7*13 и 7*х
91-7х=42
переносим неизвестные части влево а известные вправо
-7х=42-91
-7х=-49
и дклим -49 на -7
и получаем х=7

Answer 3

To solve the equation 7(13 - x) = 42, we need to isolate the variable x on one side of the equation. Here's how we can do it:

1. Distribute the 7 to simplify the left side of the equation: 7(13 - x) = 91 - 7x

2. Subtract 91 from both sides of the equation to get the variable term on one side: 91 - 7x = 42 - this simplifies to -7x = -49

3. Divide both sides by -7 to solve for x: -7x/-7 = -49/-7 x = 7

Therefore, the solution to the equation 7(13 - x) = 42 is x = 7.