+8262 How do you solve $$-3x+2y+3+7$$?
And how do you solve $$4x+3+6x+4+2xy+3yx+2$$?
+118687 Hi Dragon,
you can only add like terms. Like terms must have exactly the same letters.
-3x+2y+3+7
= -3x +2y +3 +7 The sign always belongs to the number of letter behind it.
you can only add the 3 and the 7 because the other two have letters
= -3x +2y +10
You can not add lots of x with lots of y so it is now finished.
-----------------------
4x +3 +6x +4 +2xy +3yx +2
you can add the 3 and the 4 and the 2 because they are just numbers.
=4x +6x +2xy +3yx +3 +4 +2
=4x +6x +2xy +3yx +11
Now you can add the 4lots of x to the 6 lots of x because they are both lots of x that will be 10 lots of x
= 10x +2xy +3yx +11
now 2*3=3*2 doesnt it? So x*y=y*x SO 3yx = 3*y*x = 3*x*y
so I can add 2xy to 3yx because the letters are the same! 2xy+3yx= 5xy (OR 5yx)
= 10x + 5xy + 11 
+11912 DragonSlayer the first ones really easy , u don't have to do anything and just add 3 and 7 like this
-3x+2y+3+7
= -3x+2y+10 answer
and in the second one we will bring the like terms together ands solve like
4x+3+6x+4+2xy+3yx+2 ( so now out here we shall bring the like terms together !Note that as out here we have no equal sign so we will not change any signs while bringing the like terms together!
=4x+6x+3+4+2+2xy+3yx ( and now we shall do as we have placed the values )
=10x+9+2xy+3yx ANSWER
I hope u have understood by now but if any doubt u can still ask me !
+8262 I am confused still on the showing work part... Can you explain please?
+118687 Hi Dragon,
you can only add like terms. Like terms must have exactly the same letters.
-3x+2y+3+7
= -3x +2y +3 +7 The sign always belongs to the number of letter behind it.
you can only add the 3 and the 7 because the other two have letters
= -3x +2y +10
You can not add lots of x with lots of y so it is now finished.
-----------------------
4x +3 +6x +4 +2xy +3yx +2
you can add the 3 and the 4 and the 2 because they are just numbers.
=4x +6x +2xy +3yx +3 +4 +2
=4x +6x +2xy +3yx +11
Now you can add the 4lots of x to the 6 lots of x because they are both lots of x that will be 10 lots of x
= 10x +2xy +3yx +11
now 2*3=3*2 doesnt it? So x*y=y*x SO 3yx = 3*y*x = 3*x*y
so I can add 2xy to 3yx because the letters are the same! 2xy+3yx= 5xy (OR 5yx)
= 10x + 5xy + 11
+118687 I don't think that you have had enough time to think about my answer properly yet!
+11912 Dragon u just have to pickle up the like values with the sign they have in front of them and then place that value with its matching one like I did in the second one!
+8262 Thank you very much! Can you help me with the sentences please? She logged out, and she doesn't want to help. Please?
+11912 DragonSlayer i wanted to help , i logged out becoz u were not behaving properly with me when i just asked a simple question!
+8262 Sorry. I was reading one of your posts cause I wanted to go to a laugh, and I saw that, so I posted that. Sorry.
" <----- see such a calm Lady!
