cartermakayla48
cartermakayla48
07-02-2018
Mathematics
contestada
(13x - 7) - (21x - 9) = ?
Respuesta :
Аноним
Аноним
07-02-2018
(13 x - 7) - (21x - 9) = 13x - 7 - 21x + 9 = -8x + 2
Answer Link
Аноним
Аноним
07-02-2018
13x - 21x = -8x.
-7 -(-9) = 2.
So final answer is -8x +2. Hope it helps!
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