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Bteapot · Answer 1 · 2022-05-17T12:55:12+0000

Answer:

-3(3z+91)

Explanation:

Hope this helps :)

−12(7z+4)+15(5z−15)

= -3(4(7z+4)-5(5z-15)

= -3(28z+16-25z+75)

= -3(3z+91)