Question

What should be subtracted from 2a + 8b + 10 to get -3a +7b + 16

Answer 1

2a+8b+10

-x

=-3a+7b+16

hence add both values

=-3a+7b+16

.+.....+....+

...2a+8b+10

=-a+17b+26

Answer 2

Answer:

5a +b -6 should be subtracted from 2a+8b+10 to get -3a+7b+16

Explanation:

Let X be subtracted from 2a +8b +10, it can be written as

       2a +8b +10 -X = -3a +7b+16

  ⇒ -X = -3a +7b +16 -2a -8b -10

  ⇒ -X = -3a -2a +7b -8b +16 -10

  ⇒ -X = -5a -b +6

      After divide by (-) to both side

      X = 5a +b -6