Question

Add the following: (1) 3a+2b-c and 5a- 4b​

Answer 1

Answer:

2a+b−8c

Step-by-step explanation:

Sum of −2a+b−5c and 3a−2b+c

−2a+b−5c+3a−2b+c=a−b−4c

Subtracting 3a−2b+4c from a−b−4c

a−b−4c−(3a−2b+4c)

=a−b−4c−3a+2b−4c

=−2a+b−8c

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Answer 2

$\pink{given : } \\ \\ 3a + 2b - c \\ \\ 5a - 4b \: \: \: \: \: \: \: \\ \\ \green{solution : } \\ \\ = (3a + 2b - c) + (5a - 4b) \\ \\ = 3a + 5a + 2b - 4b - c \: \: \: \: \: \: \: \: \\ \\ = 8a - 2b - c \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \:$

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