Use the order of operations
Collect like terms to simplify
Alright, I kind of zoned out in class the other day, and I can't remember the method to solve for x in this equation.
3 + 2[4x − 3(5 − x)] = 3(x − 20)
The answer to this question is x = -3 but i can't for the life of me figure out the right steps in order to get there, been trying for hours haha.
If anyone can explain to me the steps in detail how to show my work for this type of question it would be much appreciated!
Arghhh... alright so using that method I've gotten stuck again, if you could tell me what i'm doing wrong it would be MUCH appreciated.
5 + [1 + 2 (2x - 3)] = 6 (x + 5) < that is the question, now i'll show you my work below it.
5 + [1 + 4x - 6) = 6x + 30
5 + 20x - 30 = 6x + 30
20x - 6x = 30 + 30 - 5
14x = 55
This is where I'm stuck, the answer is " x = -15 " and I'm obviously not getting that with my answer.
Alright, last question I promise lol sorry to bug you guys with these questions!
2x^2 - 3x - 5
2x^2 - 7x + 5
I have to "Perform the indicated operations and simplify"
These big equations just destroy my mind, I need to learn the proper steps to tackle these suckers, my math skills have too many gaps >_< lol
EDIT:: I put the question vertically as it was getting messed up horizontally, so it's the top multiplied by the bottom.
Haha, I think you guys are assuming I'm more intelligent at math than I am XD
Even seeing what you guys are doing, I don't understand or even know what rules or methods you're using that enable you to do what you do. You guys can probably see the answer by just looking at it, but for me it's just a bunch of numbers and variables being rearranged haha.
Well, let's take a simple example:
Do you agree this can also be written as:
This is because when you multiply you get:
And since multiplication is commutative, that it you can change the order of the numbers without altering the result.
I used the same principle here.
Then, since you see a quadratic expression, you should be able to factorise it, just to see if there is something which may cancel out, and in your case, there is