How to solve for x.
Subject:
Algebra [1]
You want to isolate x. Remember what you do to one side of the equation, you have to do to the other.
4x-9= 5+2x
subtract 2x from both sides.
2x-9= 5
add 9 to both sides
2x= 14
Divide by two on both sides
x=7
Presto! You just solved for x!