Question

8. Sum of two integers is –30. If one of them is 15,
find the other integer.
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Answer 1

Answer:

-45

Step-by-step explanation:

let other integer = x

so , atq .

15+x= -30

x= -30-15

x= -45

Answer 2

Given:-

• Sum of two Integer is- 30
• One of them is 15.

To find:-

• Find the other integer ?

Solutions:-

• Let the another integer be 'x'.

• One integer = 15
• Another integer = x

And,

We have that,

The sum of two integers is -30.

According to the question:-

One integer + Another integer = Sum of Integers

=> 15 + x = -30

=> x = -30 - 15

=> x = -45

Hence, the another integer is – 45.

Verification:-

=> 15 + (-45) = -30

=> 15 - 45 = -30

=> -30 = -30

Verify.

Some Important:-

• Adding two positive integers will always result in a positive integer.
• Adding two negative integers will always result in a negative integer.

Adding one positive and one negative integer will result in,

• Positive number if a positive integer is greater.
• Negative number if a negative integer is greater.