Question

7(x-19)= 133. следуйщий 9(213-2х)=927 следуйщий 1344:(х+26)=32 следуйщий 384:(51-5х)=24 5 класс

Answer 1

1)7(х-19)=133
х-19=133:7
х-19=19
х=19+19
х=38

2)9(213-2х)=927
213-2х=927:9
213-2х=103
2х=213-103
2х=110
х=110:2=55

3)1344:(х+26)=32
х+26=1344:32
х+26=42
х=42-26
х=16

4)384:(51-5х)=24
51-5х=384:24
51-5х=16
5х=51-16
х=35:5
х=7

Answer 2

Ответ:

Пошаговое объяснение:

1) x-19=133/7

  x-19=19

  x=19+19

  x=38

2) 213-2x=927/9

   213-2x=103

   2x=213-103

   2x=110

   x=110/2

   x=55

3) x+26=1344/32

   x+26=42

   x=42-26

   x=16

4) 51-5x=384/24

   51-5x=16

   5x=51-16

   5x=35

   x=35/5

   x=7

Answer 3

To solve these equations, let's follow the steps one by one:

1. 7(x - 19) = 133

To solve for x, first, distribute the 7 on the left side:

7x - 133 = 133

Next, isolate the variable by moving the constant term to the other side:

7x = 133 + 133 7x = 266

Finally, divide both sides by 7 to find the value of x:

x = 266 / 7 x = 38

2. 9(213 - 2x) = 927

Follow the same steps as before:

Distribute the 9 on the left side:

1917 - 18x = 927

Move the constant term to the other side:

-18x = 927 - 1917 -18x = -990

Finally, divide by -18 to find x:

x = -990 / -18 x = 55

3. 1344 / (x + 26) = 32

To solve for x, first, multiply both sides by (x + 26):

1344 = 32(x + 26)

Now distribute the 32:

1344 = 32x + 832

Move the constant term to the other side:

32x = 1344 - 832 32x = 512

Finally, divide by 32 to find x:

x = 512 / 32 x = 16

4. 384 / (51 - 5x) = 24

Multiply both sides by (51 - 5x):

384 = 24(51 - 5x)

Distribute the 24:

384 = 1224 - 120x

Move the constant term to the other side:

120x = 1224 - 384 120x = 840

Finally, divide by 120 to find x:

x = 840 / 120 x = 7

These are the values of x for each equation:

1. x = 38
2. x = 55
3. x = 16
4. x = 7

It seems like these equations were given as part of a math exercise for a 5th-grade level. If you have any more questions or need further clarification, feel free to ask!