Question

ayuda por favor a)x+14=20 b) 2x+3=21 c) 3x+9=39 d) 2x+4=6 e) x+3=18 f) 6x-2=16 g) x-19=4 h) x+18=64 i) 3x+6=24

Answer 1

Respuesta:

a) x+14 = 20

1x = 20-14

1x = 6

x = 6/1

x = 6

b) 2x+3 = 21

2x = 21-3

2x = 18

x = 18/2

x = 9

c) 3x+9 = 39

3x = 39-9

3x = 30

x = 30/3

x = 10

d) 2x+4 = 6

2x = 6-4

2x = 2

x = 2/2

x = 1

e) x+3 = 18

1x = 18-3

1x = 15

x = 15/1

x = 15

f) 6x-2 = 16

6x = 16+2

6x = 18

x = 18/6

x = 3

g) x-19 = 4

1x = 4+19

1x = 23

x = 23/1

x = 23

h) x+18 = 64

1x = 64-18

1x = 46

x = 46/1

x = 46

i) 3x+6 = 24

3x = 24-6

3x = 18

x = 18/3

x = 6

Answer 2

Ecuaciones de primer grado

A)

x + 14 = 20

x = 20 - 14

x = 6

B)

2x + 3 = 21

2x = 21 - 3

2x = 18

x = 18/2

x = 9

C)

3x + 9 = 39

3x = 39 - 9

3x = 30

x = 30/3

x = 10

D)

2x + 4 = 6

2x = 6 - 4

2x = 2

x = 2/2

x = 1

E)

x + 3 = 18

x = 18 - 3

x = 15

F)

6x - 2 = 16

6x = 16 + 2

6x = 18

x = 18/6

x = 3

G)

x - 19 = 4

x = 4 + 19

x = 23

H)

x + 18 = 64

x = 64 - 18

x = 46

I)

3x + 6 = 24

3x = 24 - 6

3x = 18

x = 18/3

x = 6

Espero te ayude, que tengas un lindo día <3.