Question

4(0,3x-2)-5(0,4x-2)=-2​

Answer 1

Ответ:

x = 5

Пошаговое объяснение:

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4(0,3x - 2) - 5(0,4x - 2) = -2

Раскрываем скобки

1,2x - 8 - 2x + 10 = -2

Переносим числа в правую часть, x оставляем в левой

1,2x - 2x = -2 + 8 - 10

-0,8x = -4

x = -4/-0,8

x = 5

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Answer 2

Ответ:

$4(0.3x - 2) - 5(0.4x - 2) = - 2 \\ 1.2x - 8 - 2x + 10 = - 2 \\ - 0.8x + 2 = - 2 \\ - 0.8x = - 2 - 2 \\ - 0.8x = - 4 \: \: | \div ( - 0.8) \\ x = 5$

Answer 3

To solve the equation 4(0.3x - 2) - 5(0.4x - 2) = -2, you need to distribute the constants on both sides of the equation and then simplify it. Here are the steps:

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

4 * (0.3x - 2) = 1.2x - 8 5 * (0.4x - 2) = 2x - 10

So, the equation becomes:

1.2x - 8 - (2x - 10) = -2

2. Now, simplify the equation by combining like terms:

1.2x - 8 - 2x + 10 = -2

3. Combine like terms:

(-0.8x) + 2 = -2

4. Move the constant term to the other side of the equation by subtracting 2 from both sides:

-0.8x = -2 - 2

-0.8x = -4

5. Finally, solve for x by dividing both sides by -0.8:

x = -4 / (-0.8)

x = 5

So, the solution to the equation is x = 5.