Question

Решите уравнение:
1) х+9/20=3/4; 2) 25/36 - х = 5/18;

Answer 1

1)x+9/20=3/4

x=3/4-9/20

x=3/10

2)25/36-x=5/18

-x=5/18-25/36

-x=-5/12

x=5/12

Answer 2

1) х=3/4-9/20=(15-9)/20=6/20=3/10=0,3;

2)х=25/36-5/18=(25-10)/36=15/36=5/12....