Hallar el valor de “x”
a) 2x − 7 = 5x + 2
b) −3x + 6 = x − 10
c) 5x − 2x + 1 = x − 11
d) −x + 2x + 2 = 3x − 2
e) x + 8 = 2x − 8 + 3x
f) 6x + 7 − 2x = −x − 8
g) −9 − 7x = 6 − 2x − 10
h) −4x + 3 − 7x = −9 − 8x
i) −3x + 8 + 10x − 2 = 2x − 14
j) −4 + x + 8 − 6x = −2x + 19
k) 2x + 11 − 10x = 2 + x − 9

Respuestas

Respuesta dada por: steven2304
2

Hola!!!!

a)

2x - 7 = 5x + 2

2x - 5x = 2 + 7

 - 3x = 8

x =  \frac{8}{ - 3}

b)

 - 3x + 6 = x - 10

 - 3x - x =  - 10 - 6

 - 4x =  - 16

x =  \frac{ - 16}{ - 4}

x = 4

c)

5x - 2x + 1 = x - 11

5x - 2x - x =  - 11 - 1

2x =  - 12

x =  \frac{ - 12}{2}

x =  - 6

d)

 - x + 2x + 2 = 3x - 2

 - x + 2x - 3x =  - 2 - 2

 - 2x =  - 4

x =  \frac{ - 4}{ - 2}

x = 2

e)

x + 8 = 2x - 8 + 3x

x - 2x - 3x =  - 8 - 8

 - 4x =  - 16

x =  \frac{ - 16}{ - 4}

x = 4

f)

6x + 7 - 2x =  - x - 8

6x  -2 x + x =  - 8 - 7

5x =  - 15

x =  \frac{ - 15}{5}

x =  - 3

g)

 - 9 - 7x = 6 - 2x - 10

 - 7x + 2x = 6 - 10 + 9

 - 5x = 5

x =  \frac{ - 5}{5}

x =  - 1

h)

 - 4x + 3 - 7x =  - 9 - 8x

 - 4x - 7x + 8x =  - 9 - 3

 - 3x =  - 12

x =  \frac{ - 12}{ - 3}

x = 4

i)

 - 3x + 8 + 10 x - 2 = 2x - 14

 - 3x + 10x - 2x =  - 14 + 2 - 8

5x =  - 20

x =  \frac{ - 20}{5}

x =  - 4

j)

 - 4 + x + 8 - 6x =  - 2x + 19

  x - 6x + 2x = 19 - 8 + 4

 - 3x = 15

x =  \frac{15}{ - 3}

x = -  5

k)

2x + 11 - 10x = 2 + x - 9

2x - 10x   - x = 2  - 9 - 11

 - 9x =  - 18

x =   \frac{ - 18}{ - 9}

x = 2

Espero haber ayudado bro

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