Question

( х + 5/7) - 1/3 = 1 целая 2/7 × 2

Answer 1

(х+5/7) -1/3= 1. 2/7 *2
х+5/7-1/3=9/7*2
х+15/21-7/21=18/7
х+8/21=54/21
х=54/21-8/21
х=46/21
х=1. 5/21