Question

resuelve las siguientes ecuaciones de primer grado​

Answer 1

x + 7 = 22

x = 22 - 7

x = 15

5x - 5 = 2x + 16

5x = 2x + 16 + 5

5x - 2x = 16 + 5

3x = 21

x = 21 / 3

x = 7

10x - 10 = 5 (x + 2)

10x - 10 = 5x + 10

10x = 5x + 10 + 10

10x - 5x = 10 + 10

5x = 20

x = 20 / 5

x = 4

4 (x + 10) = 2 (x + 22)

4x + 40 = 2x + 44

4x = 2x + 44 - 40

4x - 2x = 44 - 40

2x = 4

x = 4 / 2

x = 2

Answer 2

Respuesta:

a) X + 7 = 22

X = 22 - 7

X = 15

b) 5X - 5 = 2X + 16

5X - 2X = 16 + 5

3X = 21

X = 21 : 3

X = 7

c) 10X - 10 = 5 ( X + 2 )

10X - 10 = 5X + 10

10X - 5X = 10 + 10

5X = 20

X = 20 : 5

X = 4

d) 4 ( X + 10 ) = 2 ( X + 22 )

4X + 40 = 2X + 44

4X - 2X = 44 - 40

2X = 4

X = 4 : 2

X = 2