Question

(a+3 4/7)-1 2/7=4 3/7

Answer 1

(а + 3 4/7) - 1 2/7 = 4 3/7
а + 3 4/7 = 4 3/7 + 1 2/7
а + 3 4/7 = 5 5/7
а = 5 5/7 - 3 4/7
а = 2 1/7