So basically to simplify the equation, you add, subtract, multiply, or divide the coeffiecients of the variable first before using inverse operation to solve for the variable.
Yes, we always want to simplify the equation as much as we can before we start using inverse operation.
But 3x + 4x = 7x
Unless that was your equation then it becomes 7x = 7 then divide both sides by 7 to find that x=1
Yah. I mean that as my equation. 3x + 4x = 7
7x = 7
x = 1
Hi this video was really useful and helpful
At first I didn't understand, it didn't really make sense to me but then I read tapasya's comment and how she explained it in simpler terms and I watched back through the video and I got it!!
Really man? Just a "Hi"?
So (just a random thought here), what if all of the values in the equation are followed by variables?
…different that is
Then you couldn't really do anything with the equation unless you are allowing infinite solutions, as there would be an infinite number of variable amount combinations to any equation done in this way. That is, if this rule is only on one side of the equation, otherwise combine like terms.
Scott is correct. More than one (different) variable will create a line with many solutions.
Thanks for the video it really helped but i still dont know which variabes to use to subtract and add. You said that you just pick the easiest one but i dont know how to determine which one is easier
Use SADMEP to determine the order; note that this is essentially PEMDAS backwards, but remember to use the distributive property to eliminate parenthesis first. (so I guess it would be PSADME)
As long as you apply the inverse operation to both sides it doesn't matter which variable you choose to add/subtract. But tend to add/subtract the smaller one so that it is easy to move to the other side.
5 + 100x = 7 + 3x
I would subtract 3x from both sides because 100x - 3x is easier than 3x - 100x.
5 + 97x = 7
At first I didn't understand all the steps to do with these problems, but now I understand it better.
Cora I think if all the values had different variables the equation is already in its simplest form
Yes, if there are more than one different variable like "x" and "y" then it cannot be solved for an exact amount. It would create a line with lots of solutions!
Very useful video I didn't quite understand if you had a different variable but the video helped a lot.
Sup everybody, I'm back!
Mr. Bigsby what would 19x+77y4=85x-3y?
Or is that impossible?
77y4 isn't really written correctly. If you mean to multiply each of them place a parenthesis between them. 77y(4)
But anyway, your equation has two different variable so it is a line with lots of solutions. You must provide a "y" value or "x" value to solve for the other variable.
HEY! Monday Night Football!!
It's Tuesday by the time I've read this, so HEY! Tuesday Night Football!!
This video helped
This helped me understand better
What if you did
Does the order matter
I would guess not
"x7" should really be written as "7x"
87+54x-67x+853 its random but i wanna see an answer
It needs an equal sign to be solved. It can be simplified to:
121x + 940 = ?
121x + 940 = 1 !
5x+ -7 + 4x +7t = 9x + -7 + 7t isnt it something like this or so
This has two different variables so it will create a line.
I watched this video I just didn't comment