Practice problem
Let A=[146x]A=\begin{bmatrix}1&4\\6&x\end{bmatrix}A=[164x] and let A−1=[−3541525−115]A^{-1}=\begin{bmatrix}-\frac35&\frac4{15}\\\frac25&-\frac1{15}\end{bmatrix}A−1=[−5352154−151]. Solve for xxx.
999
111
151515
333
Type a concept, like “slope” or “photosynthesis”.
