Question

7( x + 3 ) - (x - 5) = 8

Answer 1

Ответ:

Пошаговое объяснение:

7(x+3)-(x-5)=8

7x+21-(x-5)=8

7x+21-x+5=8

6x+21+5=8

6x+26=8

6x=8-26

6x=-18

x=-3

Это правильный ответ:-)

Answer 2

Ответ:

Пошаговое объяснение:

7( x + 3 ) - (x - 5) = 8

7x+21-x+5-8=0

6x+18=0

6x= -18

x= -3

Answer 3

To solve the equation 7(x + 3) - (x - 5) = 8, follow these steps:

1. Distribute the 7 on the left side of the equation:

   7(x + 3) = 7x + 21

2. Distribute the negative sign on the right side of the equation:

   -(x - 5) = -x + 5

Now, your equation becomes:

7x + 21 - (-x + 5) = 8

3. Remove the parentheses by adding the terms inside them:

   7x + 21 + x - 5 = 8

4. Combine like terms on the left side of the equation:

   7x + x + 21 - 5 = 8

   8x + 16 = 8

5. Subtract 16 from both sides of the equation to isolate the variable:

   8x + 16 - 16 = 8 - 16

   8x = -8

6. Finally, divide both sides by 8 to solve for x:

   (8x) / 8 = (-8) / 8

   x = -1

So, the solution to the equation is x = -1.