Question

What should be added to -3a+7b-16 to get 4a-3b+19?
2 points
7a+4b+34
7a-4b-3
7a-10b+34
-7a-10b-34​

Answer 1

Answer:

let number added be 'X'

thus (-3a+7b-16)+X=4a-3b+19

X=(4a-3b+19)-(-3a+7b-16)

X=4a-3b+19+3a-7b+16

X=6a-10b+35

thus (6a-10b+35) should be added