Question

РЕШЕНИЕ УРАВНЕНИЙ,РЕШИТЕ СРОЧНО!! спасибо большое заранее. 1) -2x=-142) 7-0,7x=03) 9+13y=35+26y4) (6x+1)-(3-2x) = 14 

Answer 1

1. x=7

2. x=10

3. 13y-26y=35-9

     -13y=24

         y= -1.8

4.6x+1-3+2x=14

    8x-2=14

     8x=16

       x=2

Kogda - v 2 storonah, togda budet rezultat s znakom+!

Answer 2

1.-2х=-14
    х=7
2.7-0,7х=0
   -0,7х=-7
    х=10
3.9+13у=35+26у
   26у-13у=35-9
   13у=26
    у=2
4.(6х+1)-(3-2х)=14
   18х-12х^2-3-2х=14
    12х^2-16х-17=0
    вычисляешь дискриминант и находишь х1 и х2

Answer 3

1. -2x = -14

To solve for x, we need to isolate it on one side of the equation. We can do this by dividing both sides by -2:

-2x/-2 = -14/-2

x = 7

Therefore, the solution to the equation -2x = -14 is x = 7.

2. 7 - 0.7x = 0

To solve for x, we need to isolate it on one side of the equation. We can do this by subtracting 7 from both sides:

7 - 0.7x - 7 = 0 - 7

-0.7x = -7

Finally, we can solve for x by dividing both sides by -0.7:

x = 10

Therefore, the solution to the equation 7 - 0.7x = 0 is x = 10.

3. 9 + 13y = 35 + 26y

To solve for y, we need to isolate it on one side of the equation. We can do this by subtracting 9 from both sides and then subtracting 13y from both sides:

9 + 13y - 9 - 13y = 35 + 26y - 9 - 13y

0 = 26y - 26

Finally, we can solve for y by dividing both sides by 26:

y = 1

Therefore, the solution to the equation 9 + 13y = 35 + 26y is y = 1.

4. (6x + 1) - (3 - 2x) = 14

To solve for x, we need to simplify both sides of the equation first. We can do this by distributing the negative sign on the second term inside the parentheses:

6x + 1 - 3 + 2x = 14

Now we can combine like terms:

8x - 2 = 14

Next, we can add 2 to both sides:

8x = 16

Finally, we can solve for x by dividing both sides by 8:

x = 2

Therefore, the solution to the equation (6x + 1) - (3 - 2x) = 14 is x = 2.