Question

Решите уравнение.
3/5=9/x+6
2/7=x+5/28
15/x-3=3/5
x-2/12=2/3

Answer 1

3/5=9х+6
-9х= -3/5+6
-9х=5,4
9х= -5,4
х= -5,4:9
х= -0,6

Answer 2

2/7=х+5/28

Answer 3

15/х-3=3/5 15/х=18/5

Answer 4

15*5=18х 18х=75 х=4+1/3

Answer 5

х-2/12=2/3 х=2/12+2/3 х=5/6