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Chapter 2: Q24. (page 86)

Solve each equation. Check your solution.

18−(−f)=91

Short Answer

Expert verified

The required solution is f=73.

Step by step solution

01

Step 1. Write the given information.

The given equation is:

18−(−f)=91

02

Step 2. Calculation.

Consider the given equation,

18−−f=9118+f=91f=91−18f=73

03

Step 3. Checking solution.

Substitute f=73in the given equation to check:

role="math" localid="1642419044325" 18−−f=9118−−73=9118+73=9191=91

Hence, proved.

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