Question

Реши уравнение 1) 0.36:(x-2)=1,2:5 2) (x-1):(x+1) = 3:4

Answer 1

1) 0,36 : ( x - 2 ) = 1,2 : 5
x - 2 = 0,36 : 0,24
x = 1,5 + 2
x = 3,5
2) ( x - 1 ) : ( x + 1 ) = 3 : 4
4( x - 1 ) = 3( x + 1 )
4x - 3x = 3 + 4
x = 7