codylowery5635
31.10.2020 •
Mathematics
Step by step explanation for:
-(3a + 2) - 3(5a + 7)
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Ответ:
-18a-23
Step-by-step explanation:
-(3a+2)-3(5a+7) -- (multiply out the brackets)
-3a-2-15a-21 -- (collect like terms) (-3a-15a=-18a) and (-2-21=-23)
-18a-23
Ответ: