tylersabin72
06.09.2019 •
Mathematics
Simplify + 13) + (-9а - 2) - (-7а - 3).
12
-12
14а - 12
14а - (-12)
Solved
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Ответ:
-12.
Step-by-step explanation:
-(-2а + 13) + (-9а - 2) - (-7а - 3)
= 2a - 13 - 9a - 2 + 7a + 3
= 9a - 9a - 13 + -2 + 3
= -12.
Ответ: