5. Find the difference of the following expressions. a)5x+6y-7z from 7x+8y+9z b) 6a-5b+c from 8a+9b c) a-b-c from 2a-3b+4c
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5 hours ago — a)5x+6y-7z from 7x+8y+9z b) 6a-5b+c from 8a+9b c) a-b-c from 2a-3b+4c. Add answer+5 pts.
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