SOLUTION: what is the sum of (7x-8y+2z) and (2x-7y+5z)

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Question 548967: what is the sum of (7x-8y+2z) and (2x-7y+5z)
Found 2 solutions by mananth, mathie123:
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
(7x-8y+2z) and (2x-7y+5z)
add like terms
9x-15y+7z

Answer by mathie123(224) About Me  (Show Source):
You can put this solution on YOUR website!
%287x-8y%2B2z%29%2B%282x-7y%2B5z%29

We need to collect like terms
7x%2B2x-8y-7y%2B2z%2B5z
9x-15y%2B7z