payshencec21
payshencec21
24-09-2018
Mathematics
contestada
please help asap 20 pts
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choixongdong
choixongdong
24-09-2018
-(-3a + 4b) + 5a - 5b
= 3a - 4b + 5a - 5b
= 8a - 9b
Answer is b) 8a - 9b
Answer Link
diamondwolfto
diamondwolfto
24-09-2018
-3a + 5a is 2a
4b + 5b is 9b
2a - 9b
Answer: D
Answer Link
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