Question

12x+1/4-3x=50/4
11/16x=2/5​

Answer 1

Ответ:

12х+1/4-3х=50/4; 9х=50/4-1/4; 9х=49/4; х=49/4:9;

х=49/4•1/9: х=49/36; х=1 13/36

11/16х=2/5; х=11/16:2/5; х=11•5/16•2; х=55/32=1 23/32