Subtract : 2a -3b -5c from a + 4b + 7c
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Answer:
-a +7b +12c
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a + 4b + 7c -(2a -3b -5c)
= a+ 4b+ 7c- 2a+ 3b+ 5c (sign will be change)
= a- 2a+ 4b+ 3b+ 7c+ 5c
= -a +7b +12c
Hope it is correct
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