Question

9-7(x+3)=5-4x.........​

Answer 1

Ответ:

$- \frac{17}{3}$

Пошаговое объяснение:

$9 - 7(x + 3) = 5 - 4x \\ 9 - 7x = 5 - 4x \\ - 12 - 7x + 4x = 5 \\ - 7x + 4x = 5 + 12 \\ - 3x = 17 \\ x = - \frac{17}{3}$

удачки<3

Answer 2

To solve the equation 9 - 7(x + 3) = 5 - 4x, you'll need to perform some simplification and isolate the variable x. Here are the steps to solve it:

1. Distribute the -7 on the left side of the equation: 9 - 7x - 21 = 5 - 4x

2. Combine like terms on both sides of the equation. In this case, combine the constants (9 and -21) and (5 and -4x): (9 - 21) - 7x = 5 - 4x -12 - 7x = 5 - 4x

3. Move the term with x to one side of the equation by adding 7x to both sides: -12 - 7x + 7x = 5 - 4x + 7x

   This simplifies to: -12 = 5 + 3x

4. Now, isolate the variable x. Start by moving the constant term 5 to the other side of the equation by subtracting 5 from both sides: -12 - 5 = 5 - 5 + 3x -17 = 3x

5. Finally, solve for x by dividing both sides by 3: -17/3 = 3x/3 -17/3 = x

So, the solution to the equation is: x = -17/3