Question

1)12-7(x+3)=5-6x 2)(10x+8)-(14x-8)=8 3)19,6-y=7(1,2+y) 4)0,4(6-4y)=0,5(7-3y)-1,9 5) 3/4(1/6x-1/3)=2x-11/2 6)3(x+6)=x+2(x+9) РЕШИТЕ ОЧЕНЬ СРОЧНО И БЫСТРО ПОЖАЛУЙСТА 35 БАЛЛОВ

Answer 1

Ответ:смотри фото

Пошаговое объяснение:

Answer 2

1. 12 - 7(x + 3) = 5 - 6x

To solve this equation, we will simplify and then isolate the variable x.

12 - 7x - 21 = 5 - 6x -7x - 9 = 5 - 6x -7x + 6x = 5 + 9 -x = 14 x = -14

Therefore, the solution to the equation is x = -14.

2. (10x + 8) - (14x - 8) = 8

Let's simplify and solve for x.

10x + 8 - 14x + 8 = 8 -4x + 16 = 8 -4x = 8 - 16 -4x = -8 x = -8 / -4 x = 2

The solution to the equation is x = 2.

3. 19.6 - y = 7(1.2 + y)

Let's simplify and solve for y.

19.6 - y = 8.4 + 7y

• y - 7y = 8.4 - 19.6 -8y = -11.2 y = -11.2 / -8 y = 1.4

The solution to the equation is y = 1.4.

4. 0.4(6 - 4y) = 0.5(7 - 3y) - 1.9

Let's simplify and solve for y.

2.4 - 1.6y = 3.5 - 1.5y - 1.9 -1.6y + 1.5y = 3.5 - 1.9 - 2.4 -0.1y = -0.8 y = -0.8 / -0.1 y = 8

The solution to the equation is y = 8.

5. (3/4)(1/6x - 1/3) = 2x - 11/2

Let's simplify and solve for x.

(1/8)x - 1/4 = 2x - 11/2 (1/8)x - 2x = -11/2 + 1/4 (1/8)x - 16/8x = -22/4 + 1/4 (-15/8)x = -21/4 x = (-21/4) / (-15/8) x = -21/4 * -8/15 x = 14/4 x = 7/2

The solution to the equation is x = 7/2.

6. 3(x + 6) = x + 2(x + 9)

Let's simplify and solve for x.

3x + 18 = x + 2x + 18 3x + 18 = 3x + 18 The equation is true for all values of x.

Therefore, there is no unique solution to the equation.

Note: I have provided the solutions to the equations as requested. However, please remember that it is important to work through the steps yourself to understand the process.