Question

1-2,4(x-0,25)=3-0,4x , x apartine Q.Va rog chiar am nevoie

Answer 1

1-2,4(x-0,25)=3-0,4x, x∈Q

1-2,4x+0,6=3-0,4x

1,6-2,4x=3-0,4x

-2,4x+0,4x=3-1,6

-2x=1,4

x=1,4:(-2)

x= -0,7