Question

(-12)^2 . x=56+13.10x

Answer 1

144x = 56 + 13 x 10x

144x= 56 + 130x

144x - 130x = 56

14x  = 56

x = 56 : 14

x =4

KL x = 4

Answer 2

<=> 144 . x = 56 + 130 . x

<=> 144x - 130x = 56

<=> 14x              = 56

<=>  x                 = 56 : 14

<=> x                 = 4

Answer 3

<=>144x=56+130x

<=> 144x-130x=56

<=>14x=56

<=>x=4

Vậy x=4