Question

решите уравнение: 1) 2 2/11х-5/16=1 3/4;
2) 4 2/9х+3 5/14=6 11/21;
3) 11/18-14/27х=5/12;

Answer 1

2) 42/9х+35/14=611/21
42/9х=611/21-35/14
42/9х=1222-105/42
42/9х=1117/42
х=1117/42 : 42/9
х=1117/1 * 9/1
х=10053