Question

The sum of two intigers are 310 .if one of the intiger (-80) .find the other intiger

Answer 1

let the other integer = x

x+(-80) = 310

x-80 =310

x = 310+80 =390

Answer 2

let the 2nd integer be x
-80+x=310
x=310+80
x= 390

verification
-80+390=310