Question

решение уравнения 1.25:0.4=1.35:(0.3х)

Answer 1

1,25:0,4=1,35:(0,3x)
1,35:(0,3х)=1,25:0,4
1,35:(0,3х)=3,125
0,3х=3,125*1,35
0,3х=4,21875
х=4,21875*0,3
х=1,265625