Matrix equations: scalar multiplication

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Problem

Solve for X.
15X+[472186]=[942837]\dfrac{1}{5}X+\left[\begin{array}{rr}4 & 7 \\ 2 & 1 \\8 &6 \end{array}\right]=\left[\begin{array}{rr}9 & -4 \\ -2 & 8 \\-3 &7 \end{array}\right]
X, equals