Verified Answer :

crisforp

-9 (z+3) -5 (2z+10) = -9z - 27 - 10z - 50 = -9z - 10z - 27 - 50 = -19z - 77 ;

iGreen

-9(z + 3) - 5(2z + 10)

Distribute -9:

-9z - 27 - 5(2z + 10)

Distribute -5:

-9z - 27 - 10z - 50

Combine like terms:

-19z - 77

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