Question

Решите уравнение. 5 3/7 -(b-2 1/7)=2 4/7

Answer 1

5 3/7 -b+1/7= 2 4/7

b = -5 3/7 - 1/7 + 2 4/7

b= 3

Answer 2

5 3/7-b+2 1/7=2 4/7
5 3/7+2 1/7-2 4/7=b
38/7+15/7-18/7=b
35/7=b
b=5