How do you solve an algebraic equation?
To solve an algebraic equation you need to rearrange it into the format x=? To do this there are a few rules and few steps
Rules:
-
whatever you add or subtract to one side you must also do to the other side
-
if you multiply or divide one side you must also multiply or divide the other side by the same factor
Steps:
- expand out any brackets
e.g. you can rewrite 2(x+3)=10 as 2x+6=10
- Get rid of any added or subtracted numbers from the side with the x on by doing the inverse
e.g. you would subtract 6 from both sides to rewrite 2x+6=10 as 2x=4
- Divide or multiply both sides to give you x on it's own (as supposed to 2x or 3x e.c.t.)
e.g. you would divide both sides by 2 to rewrite 2x=4 as x=2
RW
