Question

calcule o valor do x
512=4x+2

Answer 1

512=4x+2
-4x=2-512
-4x=-510 (-1)
4x=510
x=510/4
x=127,5
Resposta: 127,5 

Answer 2

512 = 4x + 2

512 - 2 = 4x

510 = 4x


x=> 510/4

simplifique:.


x:. ( 225/2).