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Chapter 2: Q. 15C (page 103)

Solve the equation. Check your solution.

-1.8u=6.3

Short Answer

Expert verified

Solution of given equation isu=-3.5.

Step by step solution

01

Step 1.  Solve for value of u

-1.8u=6.3

Dividing with -1.8on both sides, we get

-1.8u-1.8=6.3-1.8u=6.3-1.8u=-16.31.8u=-3.5

02

Step 2. Verification of our solution

For checking our answer, substitute u=-3.5 in given equation -1.8u=6.3.

On substituting, we get

-1.8u=6.3-1.8-3.5=6.36.3=6.3

03

Step 3.  Conclusion

Here, both sides of above expression are equal.

So, our answer is true.

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