nilai x yg memenuhi persamaan [tex] \left[\begin{array}{ccc}0&-3&5\\2x-3&1&3x\\-2&-2&1\end{array}\right] = -4x+19 adalah [/tex] mohon di bantu ya
Matematika
sukmazheputri
Pertanyaan
nilai x yg memenuhi persamaan [tex] \left[\begin{array}{ccc}0&-3&5\\2x-3&1&3x\\-2&-2&1\end{array}\right] = -4x+19 adalah [/tex]
mohon di bantu ya
mohon di bantu ya
1 Jawaban
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1. Jawaban hendrisyafa
[tex][tex] \left[\begin{array}{ccc}0&-3&5\\2x-3&1&3x\\-2&-2&1\end{array}\left[\begin{array}{ccc}0&-3\\2x-3&1\\-2&-2\end{array}\right] =-4x+19[/tex]
[0.1.1 + (-3).3x.(-2)+5(2x-3)(-2)] - [ 5.1(-2)+0(3x)(-2)+(-3)(2x-3).1] = -4x+19
[0+18x-20x+30] - [-10+0-6x+9] = -4x+19
[-2x+30] - [-6x-1] = -4x+19
-2x+6x+30+1 = -4x+19
4x+31 = -4x+19
4x+4x = 19-31
8x = -13
x = -13/8