Question

What should be subtracted from 2a+7b-3c to get 5a-7b + 4c

Answer 1

Answer:

-3a + 0 + 1c

Step-by-step explanation:

Just do normal subtraction

Answer 2

(3a-4b+5c)+(-5a+7b-9c)

3a-4b+5c-5a+7b-9c

(3a-5a)-(4b-7b)+(5c-9c)

-2a+3b-4c

a-b-c-(-2a+3b-4c)

a-b-c+2a-3b+4c

3a-4b+3c

this is your answer...