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

math 
bobpursley,
multipy both sides by 1
9x1=80
add one to each side
9x=81
divide each side by 9
Posted by shelbie on .
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