Question

a)5.x+12=8

Answer 1

\(5x=8-12\)

\(5x=-4\)

\(x=-\dfrac{4}{5}\)

Answer 2

5.x = 8 - 12

5.x = - 4

x = (-4) : 5

x = -0,8

vậy x = ...

Answer 3

5.x + 12 = 8

<=> 5.x  = 8 - 12

<=>5.x   = -4

<=>x      = \(\dfrac{-4}{5}\)

Vậy x = \(\dfrac{-4}{5}\)

 

Answer 4

x+12=5.8

x+12=40

x      =40-12

x      = 28

Vậy x= 28