# Find x and y. begin{bmatrix}x & -2 7 & y end{bmatrix}=begin{bmatrix}-4 & -2 7 & 22 end{bmatrix}

Find x and y.
$\left[\begin{array}{cc}x& -2\\ 7& y\end{array}\right]=\left[\begin{array}{cc}-4& -2\\ 7& 22\end{array}\right]$
You can still ask an expert for help

• Questions are typically answered in as fast as 30 minutes

Solve your problem for the price of one coffee

• Math expert for every subject
• Pay only if we can solve it

wornoutwomanC
Step 1 : Analysis
Given : $\left[\begin{array}{cc}x& -2\\ 7& y\end{array}\right]=\left[\begin{array}{cc}-4& -2\\ 7& 22\end{array}\right]$
To determine x and y
Step 2 : Solution
Two matrices are equal if they have same matrices
$\left[\begin{array}{cc}x& -2\\ 7& y\end{array}\right]=\left[\begin{array}{cc}-4& -2\\ 7& 22\end{array}\right]$
Comparing both the matrices we get ,
x=-4 y=22
Jeffrey Jordon