Simplify: (3x - 5) - (4x + 6)

-x + 11

x + 11

-x -11

x - 11

Question

Simplify: (3x - 5) - (4x + 6)

 -x + 11

 x + 11

 -x -11

 x - 11

anonymous · Answer

i got x+11, is that correct ?

johnweldon1993 · Answer

Notquite...3x - 4x = -x and -5 - 6 = -11 so

-x - 11 :)

anonymous · Answer

The first one

undeadknight26 · Answer

what he said.

mathmale · Answer

One of the easier ways of attacking this problem is to line up "like terms."  In other words, we want all the x terms in one column and all the constant terms in another.

anonymous · Answer

thanks babes

anonymous · Answer

Late response :(

johnweldon1993 · Answer

anytime :)

anonymous · Answer

wait wait -x-11 or -x+11

johnweldon1993 · Answer

Its -x - 11    the negative sign gets distributed through the second parenthesis

mathmale · Answer

(3x - 5) - (4x + 6), after changing the signs of the last two terms, becomes

 3x  -  5
-4x  + 6
--------

It's not necessary to do the problem this way, but for some people it's a lot clearer.

anonymous · Answer

@PhantomX1 you said its the first one and the first one is -x+11

anonymous · Answer

@mathmale so whats the answer

johnweldon1993 · Answer

Mathmale...look at your diagram again...you never changed the 6 to -6...

promise...its -x - 11 lol :)

mathmale · Answer

I'm sure you won't have any problem adding those 2 expressions together yourself.

Please combine:  3x-4x.
then please combine  -5+6

mathmale · Answer

@johnweldon1993 :  Your eyes are sharper than mine.  I have a prescription for new glasses and had better buy those glasses soon, don't you think?  So, would you jump in, copy what I typed, fix it and post our shared new answer?

anonymous · Answer

@PhantomX1 hey, you're the one who said its -x+11

anonymous · Answer

Come on guyssss

mathmale · Answer

3x  -  5
-4x  + 6                    <=  wrong
--------

johnweldon1993 · Answer

Haha ehh quite good at math with or without it...just a sign change :)

 3x - 5
-4x - 6
--------
-x - 11    <----this as I showed above...is your answer :)

anonymous · Answer

@mathmale can you just say what you think the answer is, dont complicate things

mathmale · Answer

Happiness is collaborating with others to obtain correct results.  Right?     :)

anonymous · Answer

@johnweldon1993 you were right by the way i got a 100, thanks

mathmale · Answer

If you say so.  But wait 'til you're my age, and you might see things differently.

Hope you're happy and satisfied with the outcome of your posting here.

johnweldon1993 · Answer

Of course :) @yeah_i_suck_at_math

anonymous · Answer

@johnweldon1993 can you help me with other questions

johnweldon1993 · Answer

sure @yeah_i_suck_at_math

mathmale · Answer

(3x - 5) - (4x + 6) =

3x-5-4x-6 =

-4x+3x -5 -6 = -x - 11

This is just an expression; it's not an equation.

anonymous · Answer

Yea it is

anonymous · Answer

-x+11

mathmale · Answer

Always (well ... usually) welcome a good math discussion  PhantomX:  How about justifying your solution, while at the same time showing how and why you believe mine and johnweldon's is wrong?