Answer :

emdinh96oreat3
The answer is C. -2.5z +3y -6
irspow

Answer:

Step-by-step explanation:

-7z-3.5+4.5z+3y-2.5, grouping like terms

-7z+4.5z+3y-3.5-2.5

-2.5z+3y-6

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