Question

What should be subtracted 2a+7b+9 to get -2a +6b+14? ​

Answer 1

Answer:

a+13b+23

Step-by-step explanation:

let the unknown no.be x

2a+7b+9 - x = -2a +6b+14

x= -2a+6b+14 + 2a+7b+9

x= a +13b+23

Answer 2

Answer:

4a+b-5

Step-by-step explanation:

let Z is subtracted

(2a+7b+9) - Z = -2a+6b+14

(2a+7b+9) -(-2a+6b+14) =Z

2a+7b+9 +2a-6b-14=Z

4a+b-5=Z