Respuesta :
Solve for z:-
z - 12 = -9
z = ?
Inverse Operation
-9 + 12 = z
-9 +12 = 3
z = 3
Check:-
z - 12 = -9
z = 3
3 - 12 = ?
3 - 12 = -9
Correct!
z = -9
z - 12 = -9
z = ?
Inverse Operation
-9 + 12 = z
-9 +12 = 3
z = 3
Check:-
z - 12 = -9
z = 3
3 - 12 = ?
3 - 12 = -9
Correct!
z = -9
z - 12 = -9
Inverse operation ( + 12 to both sides)
z = -9 + 12
z = 3
z would equal 3
Inverse operation ( + 12 to both sides)
z = -9 + 12
z = 3
z would equal 3
