Sorry I didn't know what you want
idk but just keep trying im very bad a math
Answer:
(1 , 4)
:):):):):):):):):):):):):):
Yes a negative x a negative ( eg -2 x -3 ) = a positive ( eg 6 )
Substitute the number 21 for all the letter d's:
(21-10) + (21/3) = ?
11 + 7 = 18