I don’t know can’t see it
Answer:
- determinant: -15
- x = 3; y = 4; z = 1
Step-by-step explanation:
The matrix of coefficients has one row corresponding to each equation. The constants in that row are the coefficients of the variables in the equation. Coefficients are listed in the same order on each row. A missing term is represented by a coefficient of 0.
<h3>coefficient matrix, determinant</h3>
The first attachment shows the coefficient matrix and its determinant.
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<h3>solution</h3>
The solution to the system of equations can be found by left-multiplying the constant vector by the inverse of the coefficient matrix.

This multiplication is shown in the second attachment. It tells us ...
![\textbf{X}=\left[\begin{array}{c}x\\y\\z\end{array}\right]=\left[\begin{array}{c}3\\4\\1\end{array}\right]](https://tex.z-dn.net/?f=%5Ctextbf%7BX%7D%3D%5Cleft%5B%5Cbegin%7Barray%7D%7Bc%7Dx%5C%5Cy%5C%5Cz%5Cend%7Barray%7D%5Cright%5D%3D%5Cleft%5B%5Cbegin%7Barray%7D%7Bc%7D3%5C%5C4%5C%5C1%5Cend%7Barray%7D%5Cright%5D)
(x,y)=(x1+k(x2-x1),y1+k(y2-y1))
k is determined by writing the numerator over the sum of the numerator and the denominator of the original ratio.
k=3/(3+7)=3/10.
Point A is located at (5, 10) and point B is located at (20, 25).
(x,y)=(5+(3/10)*(20-5),10+(3/10)*(25-10))
(x,y)= (9.5,14.5)
The answer would be
(9 1/2, 14 1/2)
Answer:
<u><em>Answer is below</em></u>
Step-by-step explanation:
<u><em> Divide both sides by 3.</em></u>

Answer:
other hooman is correct
Step-by-step explanation: