Question

a) What should be added to 7a - 9b + 13c to get 9a + b - c

Answer 1

Answer:

Step-by-step explanation:

(9a + b - c ) - (7a - 9b + 13c) = 2a + 10b - 14c

Answer 2

heya....✌️✌️✌️here is ur answer...

Let x should be added to 7a-9b+13c to get 9a+b-c

then,

7a - 9b + 13c + x will be equal to 9a+b-c

now,

7a - 9b + 13c + x = 9a + b - c

x= 9a + b - c - 7a + 9b - 13c

x = 9a - 7a + b + 9b - c - 13c

x = 2a + 10b - 14c

Hence, 2a + 10b - 14c should be added to 7a - 9b + 13c to get 9a + b - c

hope it helps u

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