anonymous
  • anonymous
Simplify the following expression. 2x - 2y + 5z - 2x - y + 3z x - 3y + 8z 2x - 2y + 8z 3y + 8z -3y + 8z
Mathematics
katieb
  • katieb
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anonymous
  • anonymous
2x - 2y + 5z - 2x - y + 3z combine like terms
anonymous
  • anonymous
2x - 2y + 5z - 2x - y + 3z
anonymous
  • anonymous
4th option

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anonymous
  • anonymous
1st option @hayleystonem
anonymous
  • anonymous
explain why @rvgupta
anonymous
  • anonymous
@katragaddasaichandra you should also explain please don't just give answers.
anonymous
  • anonymous
i can explain to u @rvgupta
anonymous
  • anonymous
i just solve it in my notebook and telling answers i am not guessing if u want answer i can type the whole thing. this is the answer : switch like terms next to each other (2x - 2y + 5z - 2x - y + 3z) change to ( 2x - 2x + y - 2y - 5z + 3z) next the y thats all alone add one in front of it.. thats just saying that theres only one y add/subtract like terms 2x - 2x = 0, 1y - 2y = 1y, 5z + 3z = 8z so you'll have ( 0 + 1y - 8z) leave the zero and youll answer : 1y - 8z
anonymous
  • anonymous
answer is 1y-8z
anonymous
  • anonymous
anonymous
  • anonymous
@katragaddasaichandra Thanks, it's just that this site is for help :) not just answers :)
anonymous
  • anonymous
so plz press best response
anonymous
  • anonymous
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anonymous
  • anonymous
2x-2x-2y-y+5z+3z 0 – 3y +8z
anonymous
  • anonymous
@katragaddasaichandra its -2y-y = -3y
anonymous
  • anonymous
no u r wrong i just explained u @surdawi
anonymous
  • anonymous
switch like terms next to each other (2x - 2y + 5z - 2x - y + 3z) change to ( 2x - 2x + y - 2y - 5z + 3z) next the y thats all alone add one in front of it.. thats just saying that theres only one y add/subtract like terms 2x - 2x = 0, 1y - 2y = 1y, 5z + 3z = 8z so you'll have ( 0 + 1y - 8z) leave the zero and youll answer : 1y - 8z
anonymous
  • anonymous
where did you get the +y from?
anonymous
  • anonymous
1st 1y - 2y = 1y is incorrect to begin with; correction: 1y - 2y = -1y however the correct one is -1y - 2y = -3y all 3 people how gave you medal dont know math at all
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anonymous
  • anonymous
@katragaddasaichandra can you just look at the problem again and to your answer you said (2x - 2y + 5z - 2x - y + 3z) change to ( 2x - 2x + y - 2y - 5z + 3z) 1. why do we have -y change to +y and +5z to -5z? 2. 2x - 2x = 0, 1y - 2y = 1y, 5z + 3z = 8z 1y - 2y = -1y; you said step earlier its -5z+3z so that should be -2z 3. ( 0 + 1y - 8z) in step two you said it was +8z, how did it change to negaive 3.

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