1)х=2/3+1/18=12/18+1/18=13/18
2)х=3/4+1/6-1/12=9/12+2/12-1/12=10/12
1) X-2/3=1/18
X=2/3+1/18
X=13/18
2) 1/12+X=3/4+1/6
X=3/4+1/6-1/12
X=5/6
1)х=2/3+1/18=12/18+1/18=13/18
2)х=3/4+1/6-1/12=9/12+2/12-1/12=10/12
1) X-2/3=1/18
X=2/3+1/18
X=13/18
2) 1/12+X=3/4+1/6
X=3/4+1/6-1/12
X=5/6