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Chapter 2: Q. 177 (page 144)

Solve180=a+b+cfora.

Short Answer

Expert verified

The solution foraisa=180-b-c

Step by step solution

01

Step 1. Given information      

The given formula is180=a+b+c

02

Step 2. Simplify the formula

Subtract bfrom both sides and simplify as shown below:

180=a+b+c180-b=a+b+c-b180-b=a+c

03

Step 3. Simplify further

Subtract cfrom both sides and simplify as shown below:

180-b=a+c180-b-c=a+c-ca=180-b-c

04

Step 4. Final answer

The solution forais asa=180-b-c

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