Di ketahui persamaan [tex]x \left[\begin{array}{c}2&5&-2\end{array}\right] + y \left[\begin{array}{c}-1&-6&5\end{array}\right] = \left[\begin{array}{c}-7
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Di ketahui persamaan [tex]x \left[\begin{array}{c}2&5&-2\end{array}\right] + y \left[\begin{array}{c}-1&-6&5\end{array}\right] = \left[\begin{array}{c}-7&-21&2x-1\end{array}\right] . Nilai z =[/tex]
1 Jawaban
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1. Jawaban yoesamudra
-2 + 5 = 2x-1
3 + 1 = 2x
2x = 4
x = 2
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