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rave35
28.06.2019 •
Mathematics
Simplify the expression. −9(z + 3) − 5(2z + 10) a. −19z − 77 b. −19z + 13 c. −19z − 13 d. −11z + 77
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Ответ:
A.−19z − 77
Step-by-step explanation:
−9(z + 3) − 5(2z + 10)
The first step is to distribute
-9*z -9*3 -5*2z -5*10
-9z-27 -10z-50
-19z -77
Ответ:
84%
Step-by-step explanation:
if 50(2)=100 then 42(2)=84