Question

(x-3 13/21)+2 10/21=7 2/21

Answer 1

$(x - 3 frac{13}{21} ) + 2 frac{10}{21} = 7 frac{2}{21} \ x - 3 frac{13}{21} = 6 frac{23}{21} - 2 frac{10}{21} \ x - 3 frac{13}{21} = 4 frac{13}{21} \ x = 7 frac{26}{21} \ x = 8 frac{5}{21}$

Answer 2

(x-76/21)+52/21=149/21
x-76/21+52/21=149/21
x-8/7=149/21
x=149/21+8/7
x=8 5/21