1 of 8 0-day streak

Solve a matrix equation

Question 1 of 8

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Use \(U\) for the unknown 2 × 2 matrix

Rows are ordered as Station 1 then Station 2, and columns as Line 1 then Line 2. All entries are exact

U + D = E

D = \begin{bmatrix} 7 & 3 \\ 3 & 4 \end{bmatrix}

E = \begin{bmatrix} 15 & 5 \\ 10 & 7 \end{bmatrix}