Question

3(4х-8)=3х-61-5(1,5+х)=6-7,5х3(5-х)+13=4(3х-8)плиз помогите умоляю только решение нужно полное

Answer 1

Решение
1) 0,6* 1/2 = 0,3 часть всего привезенного картофеля была продана во второй день
чтобы найти часть от части, нужно эти части умножить)
2) 8 целых 3\4 * 0,3 = (35/4)* (3/10) = 35*3/ 4*10 = 21/8 = 2 целых 5\8 т картофеля было продано во второй день

Answer 2

3(4х-8)=3х-6
12x-24-3x+6=0
9x-24+6=0
9x-18=0

x=18/9

x=2

 

1-5(1,5+х)=6-7,5х

1-(7.5+5x)-6+7.5x=0

1-7.5-5x-6+7.5x=0

-6.5-5x-6+7.5x=0

-12.5-5x+7.5x=0

-12.5+2.5x=0

x=12.5/2.5

x=5

 

3(5-х)+13=4(3х-8)

15-3x+13-4*(3x-8)=0

28-3x-4*(3x-8)=0

28-3x-(12x-32)=0

28-3x-12x+32=0

28-15x+32=0

60-15x=0

x=60/15

x=4

Answer 3

Equation 1: 3(4x-8)=3x-61

To solve the equation 3(4x-8)=3x-61, we can follow these steps:

1. Distribute the 3 on the left side of the equation: - 3 * 4x - 3 * 8 = 3x - 61 - 12x - 24 = 3x - 61

2. Move the terms with x to one side by subtracting 3x from both sides: - 12x - 3x - 24 = -61 - 9x - 24 = -61

3. Add 24 to both sides to isolate the term with x: - 9x = -61 + 24 - 9x = -37

4. Finally, divide by 9 to solve for x: - x = -37 / 9 - x = -4.1111

Equation 2: 5(1.5+x)=6-7.5x

Now, let's solve the equation 5(1.5+x)=6-7.5x:

1. Distribute the 5 on the left side of the equation: - 5 * 1.5 + 5x = 6 - 7.5x - 7.5 + 5x = 6 - 7.5x

2. Move the terms with x to one side by adding 7.5x to both sides: - 7.5x + 5x = 6 - 7.5 - 12.5x = -1.5

3. Finally, divide by 12.5 to solve for x: - x = -1.5 / 12.5 - x = -0.12

Equation 3: 3(5-x)+13=4(3x-8)

Lastly, let's solve the equation 3(5-x)+13=4(3x-8):

1. Distribute the 3 on the left side of the equation: - 15 - 3x + 13 = 12x - 32

2. Combine like terms: - 28 - 3x = 12x - 32

3. Move the terms with x to one side by adding 3x to both sides: - 28 = 15x - 32

4. Add 32 to both sides to isolate the term with x: - 15x = 28 + 32 - 15x = 60

5. Finally, divide by 15 to solve for x: - x = 60 / 15 - x = 4

So, the solutions for the given equations are: - x = -4.1111 for the first equation. - x = -0.12 for the second equation. - x = 4 for the third equation.