(29/42-a)-13/42=11/42

Question

(29/42-a)-13/42=11/42

Answer 1

 - а = -29/42 +13/42 + 11/42 
а = 5/42

Comments

благодарю

Answer 2

29/42-а=13/42+11/42 29/42-а=24/42 А=29/42-24/42 А=5/42