Question

AYUDA ES PARA HOYYY
1) x-2 = 8
2) x+5 = 12
3) 3x = 24
4) x/2 = 12
5) 2x+1 = 13
6) 5x-4 = 61
7) 5(x+1) = 15
8) 8(x-1) = 64
9) x+x+x+x = 48
10) x+2+x+3 = 21
11) 21 = x - 5
12) 5x-32 =x
13) 2x+6+5x+8 = 21
14) 5+3+32 = x+3x+4x
15) x+12+3x+8 = x+48+x
16) 5(x+2)+2(x+3) =100
17) 1/x = 5/8
18) 45 = 5(x-9)
19) 100+ 2(x+3) = 200
20) x+3+2(x+1) =18

Answer 1

Respuesta:

1) x-2 = 8

x = 8 + 2

x = 10

2) x+5 = 12

x = 12 – 5

x = 7

3) 3x = 24

x = 24/3

x = 8

4) x/2 = 12

2 (x/2) = 2*12

x = 2*12

x = 24

5) 2x+1 = 13

2x = 13 – 1

x = 12/2

x = 6

6) 5x-4 = 61

5x = 61+4

5x = 65

x = 65/5  

x = 13

7) 5(x+1) = 15

5x + 5 = 15

5x = 15 – 5

5x = 10

x = 10/5

x = 2

8) 8(x-1) = 64

   8x – 8 = 64

   8x = 64 + 8

   8x = 72

   x = 72/8

   x = 9

 

9) x+x+x+x = 48

   4x = 48

   x = 48/4

   x = 12

10) x+2+x+3 = 21

     2x+5 = 21

     2x = 21 + 5

     2x = 26

     x = 26/2

     x = 13

11) 21 = x – 5

     21 + 5 = x

     26 = x

 

12) 5x-32 =x

     5x – x =32

     4x = 32

     x = 32/4

     x = 8

13) 2x+6+5x+8 = 21

     7x+14 = 21

     7x = 21-14

     7x = 7

     x = 7/7

     x = 1

 

14) 5+3+32 = x+3x+4x

     40 = 8x

     40/8 = x

     5 = x

15) x+12+3x+8 = x+48+x

     4x+20 = 2x+48

     4x-2x= 48-20

     2x = 28

     x = 28/2

     x = 14

16) 5(x+2)+2(x+3) =100

     5x+10+2x+6 = 100

     7x+16= 100

     7x = 100 – 16

     7x = 84

     x = 84/7

     x = 12

17) 1/x = 5/8

      8 = 5x

      8/5 = x

18) 45 = 5(x-9)

     45 = 5x – 45

     45 + 45 = 5x

     90 = 5x

     90/5 = x

     18 = x

 

19) 100+ 2(x+3) = 200

     100+2x+6 = 200

      2x = 200-100-6

      2x = 200 – 106

      2x = 94

      x = 94/2

      x = 47

20) x+3+2(x+1) =18

     x+3+2x+2 = 18

     3x+5 = 18

     3x = 18 – 5

     x = 13/3

     x = 4,3  

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