Question

what should be added to a+2b + 3xto get 3a+2b+c

Answer 1

Answer:

2a+c-3x

Step-by-step explanation:

Let the number=p

Now p+(a+2b +3x)=3a +2b+c

or p+ a +2b+3x= 3a+2b+c

or p= 3a +2b +c -a -2b -3x

or p=2a +c -3x

Hence required number is 2a+c-3x

Answer 2

Answer:

2a+c-3x

Step-by-step explanation:

Now p+(a+2b+3x)=3a+2b+c

orp+a++2b+3x=3a+2b+c

or p=3a+2b+c-a-2b-3x

or p=2a+c-3x

Hence required number is2a+c-3x