math
posted by shelbie .
the problem is 9x+1=80. At the end I cant figure out if it is a negative or positive?

multipy both sides by 1
9x1=80
add one to each side
9x=81
divide each side by 9
posted by shelbie .
the problem is 9x+1=80. At the end I cant figure out if it is a negative or positive?
multipy both sides by 1
9x1=80
add one to each side
9x=81
divide each side by 9