Add, subtract, multiply or divide both sides of the equation by the same amount unitl you get only the variable you want on one side. That is all there is to it.
30 = 8 - 2x
22 = -2x
-22 = 2x
x = -11
You should be able to do the others yourself
How would you go about solving this one, though: 3p - 8= 13 - 4p
Would you subtract the 13 from the 8 first and then add 4p to the 3p?
3p - 8= 13 - 4p
You would first add 8 to both sides of the equation.
3p = 21 - 4p
Then add 4p to both sides.
7p = 21
p = ?
Great! You're welcome. :-)
Answer this Question
math - How would I use separation of variables to solve the initial value ...
math - How do you solve equations with variables on both sides?
Basic Math - I forgot how to solve for two variables... Please check if I solved...
Math - How would I solve equations with variables on both sides? Please help!
algebra - I need a step by step explanation on how to add these two equations 2x...
math - how do you do equations with variables on both sides?
Pre Algebra - Here is another one I need help with. -5x+20=-60 ( remember it is ...
Pre Algebra - I need help. This eguation is solving equations with variables and...
Pre-Algebra - How do you solve 4x+4=9x-36? I understand that you need to get the...
math, algebra - Problem: A formula for a football player's rushing average r ...