Question

the sum of two integer is -12. if one is 43 , find the other.​

Answer 1

Answer:

sum of integers =

sn = n/2[2a+(n-1)d]

-12 = n/2[2×43+(n-1)d]

-12 = n/2[86+-d]

-12n = 86n-d/2

Answer 2

Answer:

Let the unknown integer be 'x'

Then,

x + (-12) = 43

or, x = 43 + 12

or, x = 55.

Step-by-step explanation:

If this helped you then please mark my answer as brainliest.