Question

The sum of two integers is 30 if one of them is minus -10 find the other

Answer 1

let the other no. be x
A\q
-10 + x = 30
x = 30 + 10
= 40
so,
the required no. is 40

Answer 2

let the other be x

sum of two integer=30
x+(-10)= 30
x= 30+10
x= 40