Question

(x - 7) * 2 + (x-7)+ x = 99

Answer 1

Ответ:

(x - 7) * 2 + (x-7)+ x = 99

2х-14+х-7+х=99

4х-21=99

4х=99+21

4х=120

х=30

Answer 2

Ответ:

х=30

Пошаговое объяснение:

(x-7)*2+(x-7)+x=99

2x-14+x-7+x=99

4x=14+7+99

4x=120 | :4

x=30

Answer 3

To solve the equation (x - 7) * 2 + (x - 7) + x = 99, follow these steps:

1. Distribute the 2 on the left side of the equation:

2(x - 7) + (x - 7) + x = 99

2. Now, combine like terms on the left side of the equation:

2x - 14 + x - 7 + x = 99

3. Combine the x terms:

2x + x + x = 3x

4. Combine the constants:

-14 - 7 = -21

5. Rewrite the equation:

3x - 21 = 99

6. Add 21 to both sides to isolate the term with x:

3x - 21 + 21 = 99 + 21

3x = 120

7. Now, divide both sides by 3 to solve for x:

(3x)/3 = 120/3

x = 40

So, the solution to the equation (x - 7) * 2 + (x - 7) + x = 99 is x = 40.