In Problems 7-12, evaluate each given determinant after first simplifying the computation (as in Example 6) by adding an appropriate multiple of some row or column to another. 1 1 1 4 7. 22 2 8. 1 333 7 3-2 5 5 9. 0 5 17 10. 1-2-4 6-4 12 2 -5 12 223 312 332 625 -2 -3 -3

Q: $6. 26 21 25

A: Solution of the problem as follows

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Q: Thanks a lot for your quick respons.   Best

A: Welcome

Q: Find x. * 15 6,

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Q: thanks brudda

A:

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A: The objective of the question is to solve the equation for the variable 'n'.

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A: The solution is as follows:

Q: 1-r² 8. r dz dr de.

A: Explanation of the answer is as follows

Q: Simplify. 48+75+ V12 = Submit Question

A: To simplify  48+75+12