Thread: Distributing and simplifying

Originally Posted by vaironxxrd

4(3x-5)= -2(-x+8)

I got 10x= 4
= 2.5

I disagree with your answer of

Originally Posted by Prove It

I disagree with your answer of

Oh so I was pretty close . One more question when 10x/4 you divide by 10 to get x by itself?

Originally Posted by vaironxxrd

Oh so I was pretty close . One more question when 10x/4 you divide by 10 to get x by itself?

Do you mean:
?
Because that's not just but

Originally Posted by Siron

Do you mean:
?
Because that's not just but

So your telling me its basically 10x/4/10? That looks weird

Originally Posted by vaironxxrd

Oh so I was pretty close . One more question when 10x/4 you divide by 10 to get x by itself?

10x/4 has to equal something though. In this case it is equal to 1 because you've brought the 4 from the RHS onto the LHS by division: . From here you'd need to divide both sides by 10/4: and since we divide fractions by "flip n multiply" the RHS is the same as



From the line you can divide both sides by 10 because we want to get x on it's own (which is the same as 1x): and since 10/10 is indeed 1 this is the same as which is correct but it's more proper to simplify fractions and so 2/2 was cancelled.

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