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Find $A$ and ${\bf b}$ such that $A{\bf x}={\bf b}$ corresponds to the given linear system.

$5 x_1 - 2 x_2 = 7$

$-5 x_1 + 6 x_2 = 1$

$4 x_1 - 2 x_2 = 2$

$\left.\vphantom{\begin{array}{c}\!\strut\\\!\strut\\\!\strut\\\!\strut\\\end{array}}\right[$			$\left.\vphantom{\begin{array}{c}\!\strut\\\!\strut\\\!\strut\\\!\strut\\\end{array}}\right]$

$\left[\begin{matrix} x_1 \cr x_2\cr \end{matrix}\right] =$

$\left.\vphantom{\begin{array}{c}\!\strut\\\!\strut\\\!\strut\\\!\strut\\\end{array}}\right[$		$\left.\vphantom{\begin{array}{c}\!\strut\\\!\strut\\\!\strut\\\!\strut\\\end{array}}\right]$

You can earn partial credit on this problem.