Question

what should be added to - 3a + 7b - 16 to get the sum - 8? *
(a) 8
(b) 3a- 7b+ 8
(c)-3a+7b+8
(d) 3a- 7b + 24​

Answer 1

Step-by-step explanation:

option b

3a-7b+8 +(-3a+7b16)=3a-3a-7b+7b+8-16

=-8

Answer 2

Answer:

b) 3a- 7b+ 8

Step-by-step explanation:

simply eradicate the variable terms by adding values of same magnitude but opposite sign, i.e., in this case add 3a- 7b... now u only have a constant to deal with... calculate what must u add to -16 to get -8... u gotta add 8 to it... therefore in total, u have to add 3a -7b+ 8