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You have to isolate the variable

i.e.
5x - 4 = 21 (i made this up)
So we need to leave x alone

So for example If i had 11-3f+8=r how would i approach the problem.

Now we cancel out the 5
The opposite of multiplying 5 is DIVIDING it.
5x/5 = 25/5
x = 5

Ok well that one is three steps actually

not r but but 4

First look at 11 and 8. These are like terms so just combine them.
11 + 8 = 19

Now we have 19 - 3f = 4

WE get rid of anything without a variable first, so what is the opposite of adding 19?

I say adding because even tho it is at the beginning of the equation, it is positive.

How would i solve for x thought?i believe it is subtracting 19 from 3 right?

WE have to cancel it out. So the *opposite* of +19 is what?

-19

Add our left over variables.

What do we get when subtracting 19 on both sides?

Noooo we have:
-3f = -15
19 - 19 just cancels out and we had to subtract 4 - 19

WE make 3 negative because that was the sign that was in front of it

no wrong thing.

Now what do you think we do to remove -3 from the f?

what

so -3 * f = 4-19

Yes, but 4 - 19 can just be simplified to -15
-3 * f = -15

I get it now thanks!!!

Yeah, just remember to divide -3 on both sides to cancel out and isolate x.