Solve the Equation for X $$\left| \begin{array} { r r } - 2 & 5 \\1 & x\end{array} \right| = - 7$$

Q43: Find the partial fraction decomposition for

Q44: Solve the problem.<br>-The following table shows

Q45: Find the inverse, if it exists,

Q46: Write the augmented matrix for the

Q47: Solve the problem using matrices.<br>-A chemist

Q49: Solve the system by elimination.<br>- <span

Q50: Use the Gauss-Jordan method to solve

Q51: Find the dimension of the matrix.<br>-

Q52: Solve the problem.<br>-Linda invests $25,000 for one

Q53: The sizes of two matrices are