Question

Скорее даю много баллов!ПОМОГИТЕ!!!!!!!!!!!! 1)9х-36=20-5х 2)6x=35-x 3)27-3x=6x-36 4)0,7x-7,5=-0,6x+4,2 5)2,8-1,3x=0,6x-4,8 6)3/8+39=7/12x+4 7)4(x-4)=x+8 8)12-7(x+3)=5-6x 9)(10x+8)-(14x-8)=8 10)19,6-y=7(1,2+y) 11)0,4(6-4y)=0,5(7-3y)-1,9 12)3/4(1/6x-1/3)=2x-11 1/2 13)3(x+6)=x+2(x+9) 14)2(8x-7)=18-4(5-4x)

Answer 1

Сейчас ещё решу все остальные

Answer 2

Ответ:

я решил до 4 уравнение

1.

$x = 4 \\ x = 5 \\ x =7 \\ x = 117$

Answer 3

1) 9x - 36 = 20 - 5x

To solve this equation, we want to isolate the variable x on one side of the equation. First, let's simplify both sides:

9x - 36 + 5x = 20 - 5x + 5x 14x - 36 = 20

Next, let's eliminate the constant term (-36) on the left side by adding 36 to both sides:

14x - 36 + 36 = 20 + 36 14x = 56

To solve for x, divide both sides by 14:

14x/14 = 56/14 x = 4

So, the solution to the equation is x = 4.

2) 6x = 35 - x

To solve this equation, we want to isolate the variable x on one side of the equation. First, let's simplify both sides:

6x + x = 35 - x + x 7x = 35

Next, divide both sides by 7 to solve for x:

7x/7 = 35/7 x = 5

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

3) 27 - 3x = 6x - 36

To solve this equation, we want to isolate the variable x on one side of the equation. First, let's simplify both sides:

27 - 3x + 3x = 6x - 36 + 3x 27 = 9x - 36

Next, let's eliminate the constant term (-36) on the right side by adding 36 to both sides:

27 + 36 = 9x - 36 + 36 63 = 9x

To solve for x, divide both sides by 9:

63/9 = 9x/9 7 = x

So, the solution to the equation is x = 7.

4) 0.7x - 7.5 = -0.6x + 4.2

To solve this equation, we want to isolate the variable x on one side of the equation. First, let's simplify both sides:

0.7x + 0.6x = -0.6x + 0.7x + 4.2 + 7.5 1.3x = 15.7

Next, divide both sides by 1.3 to solve for x:

1.3x/1.3 = 15.7/1.3 x ≈ 12.08

So, the solution to the equation is x ≈ 12.08.

5) 2.8 - 1.3x = 0.6x - 4.8

To solve this equation, we want to isolate the variable x on one side of the equation. First, let's simplify both sides:

1.3x + 0.6x = 0.6x - 1.3x - 4.8 + 2.8 1.9x = -2

Next, divide both sides by 1.9 to solve for x:

1.9x/1.9 = -2/1.9 x ≈ -1.053

So, the solution to the equation is x ≈ -1.053.