Diketahui persamaan matriks
⎧k l⎫ ₌ ⎧3l 4⎫
⎩t p⎭ ⎩k–5 t–1⎭
Pembahasan:
• k = 3l
• l = 4
• t = k – 5
• p = t – 1
⇒ k = 3l = 3 × 4 = 12
⇒ t = k – 5 = 12 – 5 = 7
⇒ p = t – 1 = 7 – 1 = 6
k + l + t + p = 12 + 4 + 7 + 6 = 29