\left( \begin{array} { l l } { 2 } & { b } \\ { 3 } & { 2 b } \end{array} \right) \left( \begin{array} { c c } { a } & { 3 } \\ { 3 } & { - 2 } \end{array} \right) = \left( \begin{array} { c c } { 4 } & { - 2 } \\ { 1 } & { c } \end{array} \right) + \left( \begin{array} { l l } { 2 } & { d } \\ { 2 } & { 5 } \end{array} \right)
Solve for a, b, d, c
a=9
b=-4
d=16
c=20
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