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Chapter 1: Q. 1.77 (page 53)

Simplify:

a) -31+(-19)

b)15+(-32)

Short Answer

Expert verified

Part(a) The required answer is -50.

Part(b) The required answer is-17.

Step by step solution

01

Part(a) Step 1. Given Information

Given expression:-31+(-19)

02

Part(a) Step 2. Calculation

We have, -31+(-19)

The signs are the same, So we have to perform addition.

The answer will be negative because there are only negatives.

-31+(-19)=-50

03

Part(b) Step 1. Given Information

Given expression;15+(-32)

04

Part(b) Step 2. Calculation

We have, 15+(-32)

The signs are different, so we subtract 15from 32

The answer will be negative because there are more negatives.

15+(-32)=-17

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