subtract the sum of (4a+b-7c) and (9a-3b+10c) from the difference of (25a+8b-5c) and (12a-3b+8c)
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Answer:
13b-16c
Step-by-step explanation:
First add (4a+b-7c) and (9a-3b+10c). We get 13a-2b+3c
Then subtract (25a+8b-5c) and (12a-3b+8c). We get 13a + 11b - 13c
Then subtract 13a + 11b - 13c from 13a-2b+3c.
13a + 11b - 13c
_ 13a - 2b + 3c
(-) (+) (-)
________________
13b - 16c
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