Question

0f) 5 - 2x + 4x = 21​

Answer 1

Ответ:

8

Пошаговое объяснение:

5 - 2x + 4x = 21​

5 - 2x + 4x-21=0

2x=16

x=8

Answer 2

Ответ:

$5 - 2x + 4x = 21$

Привести подобные члены

$5 + 2x = 21$

Перенести константу в правую часть равенства

$2x = 21 - 5$

Вычислить

$2x = 16$

Разделите обе стрроны уравнения на 2

$x = 8$

Answer 3

To solve the equation 5 - 2x + 4x = 21, you'll want to simplify and isolate the variable x. Here are the steps to solve it:

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

   5 - 2x + 4x = 21

   First, combine the -2x and 4x:

   5 + 2x = 21

2. Now, you want to isolate the variable x. Start by subtracting 5 from both sides of the equation:

   5 + 2x - 5 = 21 - 5

   This simplifies to:

   2x = 16

3. Finally, to solve for x, divide both sides by 2:

   (2x)/2 = 16/2

   This simplifies to:

   x = 8

So, the solution to the equation 5 - 2x + 4x = 21 is x = 8.