Question

решите уравнение 4/7х + 5/14х - 10/21 х= 1/7

Answer 1

8/14х+5/14х - 10/21 х= 1/7
13/14х - 10/21 х= 1/7
273/294х-130/294х=1/7
143/294х=1/7
х=42/143

Answer 2

4/7х+5/14х-10/21х=1/7
24/42х+15/42х-20/42х=6/42
19/42х=6/42
х=6/42:19/42
х=6/19