please answer this question.
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and
3m-3n+3p + 7m-2n-9p=10m-5n-6p
now subtract both of them
2n -10m+5n+6p=7n-10m+6p
that's it..
= (10m - 5n - 6p) - (2n)
= 10m - 5n - 6p - 2n
= 10m - 7n - 6p
This is the answer to your question.
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