please explain step by step

[vermonstervt]

simplify adding like terms
xym-3ymx+4xmy-3my+2ym Please explain step by step thanks

 

[Guest]

xym-3ymx+4xmy-3my+2ym

Notice there are like terms in this equation. So combine it.

xym-3ymx+4xmy-3my+2ym

3my and 2ym are the same. Just to let you know. So just combine like-terms and there you go. Also notice the variables xym, ymx, and xmy are the same. They're just rewritten in different order.

 

[Denis]

xym-3ymx+4xmy-3my+2ym

rewrite (2*5*3 = 2*3*5, right?):
mxy - 3mxy + 4mxy - 3my + 2my : ok?

now polish off: 2mxy - my

 

[vermonstervt]

Is this correct

-a(b-a) if a=-4 b=-3
-4(1)=-4
If not correct please explain step by step thanks

 

[stapel]

Please post new questions as new threads, not as replies to old questions. Thank you.

Eliz.

 

[vermonstervt]

Are these correct

a^2-b^2a if a=-2 b=3
-2^2-3^2-2
-4-4-2=-13-2=-15
------------------
-x^2-y^3 if x=-3 y=-2
-3^2-2^3
-9-8=-17

 

[Gene]

Please post new questions as new threads, not as replies to old questions. Thank you.


You have the right idea but are careless with your signs. -a(b-a) if a=-4 b=-3
-(-4)((-3)-(-4)) =
(4)(1) = 4

Study this one then try the next one again keeping the variables in ()s whenyou substitue.

 

[Guest]

it doen't matter the order in which three variables are put to get an answer.

say that x=5,
y=3
& m= 2.

the order in which the 3 numbers would be multiplyed wouldn't affect the result.

5 times 3 times 2 will equal 30
and so will
3 times 2 times 5.

Now,
knowing that,
xym is the same thign as ymx and the same thing as xmy,

if xym=ymx

then xym(also ymx) + 3ymx would = 4 ymx. Right? follow with me here.

Then, concluding everything else i explained, then 4 ymx would be the same thing as 4xmy.

so,

4ymx(also 4xmy) + 4xmy= 8 xmy.

_____________________________________________


Part 2.

now the other part of the equation left would be 3my+2ym.

Since that whole part is SUBTRACTED from the other half,
you need to simplify that part seperately from the other part.

as i said, before, 3my could be the same thing as 3ym, so
3my(also 3ym) + 2ym= 5ym.




:?: :idea: :!: THE ANSWER IS::: 8xmy-5ym

 

[Guest]

NOW EVERYONE!!!
stop messing with the problem ANYMORE> thankyou.

 

[stapel]

NOW EVERYONE!!!
stop messing with the problem ANYMORE> thankyou.

Um... you're the only one "messing" with threads. Kindly start helping people, or else please take your chat-room behavior elsewhere. Thank you.

Eliz.