Question

If P= 3a-7b+2c, Q= 5a+2b-7c, R= -a+4b-5c then P+Q+R =____

Answer 1

Answer:

Given ,

P = 3a - 7b +2 c

Q = 5a + 2b - 7c

R = - a + 4 b -5 c

Therefore ,

P + Q + R

= 3 a + 5a - a -7 b + 2b + 4b + 2c - 7c - 5c

= 7a - 6b - 10c

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Answer 2

Answer:

above answer is correct...

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