Question

Помогите пожалуйста!
Решите уравнения:

Answer 1

$frac{3x+1,6}{2,4} = frac{5}{1,2} \ \ 1,2(3x+1,6)=2,4*5 \ 3,6x+1,92=12 \ 3,6x=10,08 \ x=2,8$


$frac{5,4}{3} = frac{0,9}{4,7x-4,2} \ \ 5,4(4,7x-4,2)=3*0,9 \ 25,38x-22,68=2,7 \ 25,38x=25,38 \ x=1$

Answer 2

$3) frac{3x+1.6}{2.4} = frac{5}{1.2} \ (3x+1.6)*1.2=5*2.4 \ 3.6x+1.92=12 \ 3.6x=12-1.92 \ 3.6x=10.08 \ x=10.08:3.6 \ x=2.8$

$4) frac{5.4}{3} = frac{0.9}{4.7x-4.2} \ 5.4*(4.7x-4.2)=0.9*3 \ 25.38x-22.68=2.7 \ 25.38x=2.7+22.68 \ 25.38x=25.38 \ x=25.38:25.38 \ x=1$