Question

Решите уравнение 2)x+34,56=0 3)x-0,8=-3/4 4)140-x:2=|-46| 8)2x-7/30 решите поскорее буду очень благодарна И ДОРОГИЕ МОДЕРАТОРА НЕ УДАЛЯЙТЕ МОЙ ВОПРОС ТАК _КАК Я НЕ ХОЧУ ПОЛУЧАТЬ МНОГО ПРЕДУПРЕЖДЕНИЙ , ПОТОМУ ЧТО Я НЕ ХОЧУ ЧТОБ МОЙ АККАУНТ В ЗНАНИЯХ УДАЛИЛИ ПОМОГИТЕ МНЕ С УДОВОЛЬСТВИЕМ!!!!!!!!!!!

Answer 1

1)х+34,56=0
х=0-34,56 
х=-34,56
если х больше 0 то х=34,56
если х меньше 0 то х=-34,56
2)х-0,8=-3/4
х-0,8=-0,75
х=0,05
3)140-х/2=/-46/
х/2=-46+140
х/2=94
х=94/2
х=47

Answer 2

Solution to the Equations:

1. Equation 1: 2x + 34.56 = 0

To solve this equation, we need to isolate the variable x. Let's start by subtracting 34.56 from both sides of the equation:

2x + 34.56 - 34.56 = 0 - 34.56

Simplifying the equation gives us:

2x = -34.56

Next, we divide both sides of the equation by 2 to solve for x:

2x/2 = -34.56/2

x = -17.28

Therefore, the solution to the equation 2x + 34.56 = 0 is x = -17.28.

2. Equation 2: 3x - 0.8 = -3/4

To solve this equation, we'll start by adding 0.8 to both sides of the equation:

3x - 0.8 + 0.8 = -3/4 + 0.8

Simplifying the equation gives us:

3x = -3/4 + 0.8

Next, we'll find a common denominator for -3/4 and 0.8, which is 4:

3x = -3/4 + 0.8 * 4/4

Simplifying further:

3x = -3/4 + 3.2/4

Combining the fractions:

3x = (-3 + 3.2)/4

3x = 0.2/4

Simplifying the equation gives us:

3x = 0.05

Finally, we divide both sides of the equation by 3 to solve for x:

3x/3 = 0.05/3

x = 0.05/3

x ≈ 0.0167 (rounded to four decimal places)

Therefore, the solution to the equation 3x - 0.8 = -3/4 is x ≈ 0.0167.

3. Equation 3: (140 - x)/2 = |-46|

To solve this equation, we'll start by simplifying the absolute value expression:

|-46| = 46

Now, we can rewrite the equation as:

(140 - x)/2 = 46

To isolate x, we'll multiply both sides of the equation by 2:

2 * (140 - x)/2 = 46 * 2

Simplifying the equation gives us:

140 - x = 92

Next, we'll subtract 140 from both sides of the equation:

140 - x - 140 = 92 - 140

Simplifying further:

-x = -48

Finally, we multiply both sides of the equation by -1 to solve for x:

(-1) * (-x) = (-1) * (-48)

x = 48

Therefore, the solution to the equation (140 - x)/2 = |-46| is x = 48.

4. Equation 4: 2x - 7/30

I apologize, but it seems like there is a missing part in the equation. Could you please provide the complete equation so that I can help you solve it accurately?

Please let me know if there's anything else I can assist you with!