Question

0.35:2/3=0.45:х-10
решите уравнение
быстро

Answer 1

0.35:2/3=0.45:х-10
7/20*3/2=9/20*1/x-10
21/40=9/20x-10
-9/20x=-10-21/40
-9/20x=-421/40
-360=-8420x
-8420x=-360
x=18/421