Question

2) 9 - 7(x + 3) = 5 - 4x. ​

Answer 1

Ответ:

x=-5,6

Пошаговое объяснение:

9-7(x+3)=5-4x

9-7x-21=5-4x

-7x+4x=-9+21+5

-3x=17

x=-17/3

x=-5,6

Answer 2

Ответ:

.......................

Answer 3

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

1. Start by distributing the -7 on the left side of the equation:

   9 - 7x - 21 = 5 - 4x

2. Now, combine like terms on both sides of the equation. Combine the constants (9 and -21 on the left side and 5 on the right side) and the x terms (-7x and +4x):

   (9 - 21) - 7x = 5 - 4x

   -12 - 7x = 5 - 4x

3. Next, let's get all the x terms on one side of the equation. You can do this by adding 4x to both sides:

   -12 - 7x + 4x = 5 - 4x + 4x

   -12 - 3x = 5

4. Now, isolate the variable x by adding 12 to both sides of the equation:

   -12 - 3x + 12 = 5 + 12

   -3x = 17

5. Finally, divide both sides by -3 to solve for x:

   (-3x) / (-3) = 17 / (-3)

   x = -17/3

So, the solution to the equation 9 - 7(x + 3) = 5 - 4x is x = -17/3.