
Arthur S. answered 09/06/12
Math, Science, Chemistry, and Computer Tutor
Mary,
2x +3 = x
You want to get like terms on each side of the equation so subtract x from each side to get
2x - x + 3 = x - x
simplify to get
x+3 = 0
then subtract 3 from each side
x + 3 - 3 = -3
so x = -3
now plug this value back in to the equation to check it.
Hope that helps!
Art