решите уравнение 2/3 +(1/7 + x)=5/6 +1/12

2/3+(1/7+х)=5/6+1/122/3+(1/7+х)=10/12+1/122/3+(1/7+х)=11/121/7+х=11/12-2/31/7+х=11/12-8/121/7+х=3/121/7+х=1/4х=1/4-1/7х=7/28-4/28х=3/28

2/3 +(1/7 + x)=5/6 +1/122/3+(1/7+x)=11/121/7+x=3/12x=3/28