Brainest for best answer only 5 mins left show your work

Which equation shows the variable terms isolated on one side and the constant terms isolated on the other side for the equation -1/2x+3=4-1/4x? a. -1/4x=1 b. -3/4x=1 c. 7=1/4x d. 7=3/4x

What number is 7 units left of -15?

Xy x xy if a and b are positive integers such that a*b=9 and b*a=72 what is the value of a/b