Question

Q11) What should be added to
the sum of (-49) and (+31) to
get (-25)​

Answer 1

-49 + 31 + x = (-25)

=> x = -25 +49-31

x = -7

Answer 2

(-49+31)+x= -25

-18+x= -25

x= -25+18

x= -7

therefore,7 will be added