Question

5x+34=51, (2x-32)*4=21, 7x-26=5x-48

Answer 1

Ответ:

Пошаговое объяснение:

1) 5х+34=51

5х=51-34

5х=17

х=17/5=3  2/5 = 3,4

2) (2х-32)*4=21

     8х-128=21

     8х=21+128

      8х=149

       х=149/8 = 18 5/8 = 18,625

3) 7х-26=5х-48

7х-5х=48+26

2х=74

х=74/2=37

       

Answer 2

Ответ: 5x + 34=51

5x=17

x= 17/5

x=3,4

(2x-32)*4=21

8x-128=21

8x=149

5

x= 18---

8

7x-26=5x-48

2x= -22

x= -11

Answer 3

To solve the equations, follow these steps:

1. 5x + 34 = 51
2. (2x - 32) * 4 = 21
3. 7x - 26 = 5x - 48

Let's solve them one by one:

1. 5x + 34 = 51

To isolate x, we need to move the constant term (34) to the other side of the equation:

5x = 51 - 34 5x = 17

Now, divide both sides by 5 to solve for x:

x = 17 / 5 x = 3.4

So, the solution for the first equation is x = 3.4.

2. (2x - 32) * 4 = 21

To solve this equation, first, distribute the 4 on the left side:

8x - 128 = 21

Next, move the constant term (-128) to the other side:

8x = 21 + 128 8x = 149

Finally, divide both sides by 8 to find the value of x:

x = 149 / 8 x = 18.625

The solution for the second equation is x = 18.625.

3. 7x - 26 = 5x - 48

To solve this equation, we need to isolate x. Start by moving the variable terms to one side and the constant terms to the other side:

7x - 5x = -48 + 26 2x = -22

Now, divide both sides by 2 to find x:

x = -22 / 2 x = -11

So, the solution for the third equation is x = -11.

In summary:

1. x = 3.4
2. x = 18.625
3. x = -11