coriewilkerson
coriewilkerson
16-02-2018
Mathematics
contestada
(-9ab+8a-3) - (-7ab+1)
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Banabanana
Banabanana
16-02-2018
(-9ab+8a-3) - (-7ab+1) =
-9ab + 8a - 3 + 7ab - 1 =
-2ab +8a - 4
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