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

Question

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

Answer 1

1)0.36 · 5=1.2(x-2)
1.8=1.2x-2.4
1.2x=4.2
x=3.5
2)4(x-1)=3(x+1)
4x-4=3x+3
x=7