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- anonymous

Simplify the following expression.
2x - 2y + 5z - 2x - y + 3z
x - 3y + 8z
2x - 2y + 8z
3y + 8z
-3y + 8z

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- anonymous

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- anonymous

2x - 2y + 5z - 2x - y + 3z
combine like terms

- anonymous

2x - 2y + 5z - 2x - y + 3z

- anonymous

4th option

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- anonymous

1st option @hayleystonem

- anonymous

explain why @rvgupta

- anonymous

@katragaddasaichandra you should also explain please don't just give answers.

- anonymous

i can explain to u @rvgupta

- 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

answer is 1y-8z

- anonymous

how @katragaddasaichandra

- anonymous

@katragaddasaichandra Thanks, it's just that this site is for help :) not just answers :)

- anonymous

so plz press best response

- anonymous

- anonymous

2x-2x-2y-y+5z+3z
0 – 3y +8z

- anonymous

@katragaddasaichandra its -2y-y = -3y

- anonymous

no u r wrong i just explained u @surdawi

- 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

where did you get the +y from?

- 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

- 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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