Question

If P = a + b +c, Q = 2a – b + 3c, find P + 2Q.

Answer 1

Step-by-step explanation:

given P=a+b+c;Q=2a-b+3c.

solving:

P+2Q=a+b+c+2(2a-b+3c)

P+2Q=a+b+c+4a-2b+6c

Therefore final answer is as follow:

P+2Q=5a-b+7c.

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