Question

a +b = 12
--------------
a - b = 5

hallar a/b

Answer 1

Respuesta:

17/7

Explicación paso a paso:

a+b = 12

------------- hallar : a/b

a-b = 5

¬¬¬¬¬¬¬¬¬¬. a/b = 17/2/7/2

Resolución : a/b = 17 /7

a+b = 12

a= 12 - b

a - b =5

12 - b - b = 5

12 - 2b = 5

12 - 5 = 2b

7 = 2b

7/2 = b

a = 12 - b

a = 12 - 7/2

a = 17/2