3 1/2*(2/3x+4/7)=2 1/3

Question

3 1/2*(2/3x+4/7)=2 1/3

Answer 1

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

Answer 2

2/3x+4/7=2 1/3: 3 1/2
2/3х+4/7= 2/3
2/3х=2/3-4/7
2/3х=2/21
х=2/21:2/3
х=1/7
Ответ: 1/7