Question

3 целых1/2*(2/3x+4/7)=2целых1/3

Answer 1

3 1/2*(2/3x+4/7)=2 1/3
7/2*(2/3x+4/7)=7/3
2/3x+4/7=7/3:7/2
2/3x+4/7=7/3*2/7
2/3x+4/7=2/3
2/3x=2/3-4/7
2/3х=14/21-12/21
2/3х=2/21
х=2/21:2/3=2/21*3/2=3/21=1/7