Question

. Resuelve las siguientes ecuaciones:
a) 5x + 2 = x + 10
b) 1 + 3x = 2x + 7
c) 2 + 7x = 4 – 3x
d) x – 18 = 2x – 3
e) – 5 – 2x = 3 – 8x – 2

Answer 1

Respuesta:

Explicación paso a paso:      

a ) 5x + 2 = x + 10

5x - x = 10 - 2

4x = 8

x  = 8/4

x = 2

b)1 + 3x = 2x + 7

3x - 2x = 7 - 1

x = 6

c)   2 + 7x = 4 - 3x

7x + 3x = 4 - 2

10x = 2

x = 2/10

x = 1/5

d) x - 18 = 2x - 3

x - 2x = - 3 + 18

- x = 15

x = - 15

e) - 5 - 2x = 3 - 8x - 2

- 2x + 8x = 3 - 2 + 5

-6x = 6

x = 6/6

x =  1