Respuesta :

Answer:

a = 99

Step-by-step explanation:

a - 85 = 14

+85      +85

a - 85 + 85 = a

14 + 85 = 99

a = 99

Answer:

a=99

Step-by-step explanation:

Lets make a the unknown.

If we subtract 14 to both sides

a-85-14=14-14

a-99=0

add 99 to both sides

a-99+99=0+99

a=99

A must equal 99

Check:

99-84=14

14=14

:)

Hope this helps!