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Chapter 2: Q2. (page 105)

Describe how you would solve the equation-7.9x=86.9?

Short Answer

Expert verified

The value of given equation is -11.

Step by step solution

01

Step-1- Solving linear equations

-7.9x=鈥�86.9

Dividing with -7.9on both sides give,

鈭�7.9x鈭�7.9=86.9鈭�7.9x=鈭�86.97.9x=鈭�11

02

Step-2-Check the solution 

Substitute x=鈥�-11in the given expression and observe the result.

鈭�7.9脳鈭�11=86.986.9=86.9

Since both sides are equal, the solution is correct.

03

Step-3-Conclusion

The solution of given equation is x=鈥�-11.

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