Respuesta :
Answer:
minus a negative number meand that u are adding its inverse so the equation would look like 4d+1=13. from there u isolate d
4d+1=13
-1 -1
4d=12
d=3
4d - (-1) = 13 Original Problem
+ 1 = +1 Trying to isolate d
4d = 14 Div. by 4, both sides
—— —-
4 4
d = 3.5 Answer
+ 1 = +1 Trying to isolate d
4d = 14 Div. by 4, both sides
—— —-
4 4
d = 3.5 Answer