0
Anonymous
X - 4 = 9
add 4 to each side
X = 13
check
13 - 4 = 9
9 = 9
Wiki User
Chat with our AI personalities
x=13
yes
9 x 4 = 36
28 is.
N = x4 x8 = x4+4 = (x4)2 = N2
If there is a remainder then it's not a factor otherwise yes