Tolong besok dikumpul

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Tolong besok dikumpul

Tolong besok dikumpul

Jawaban Terkonfirmasi

Mapel : Matematika
Bab : Sistem Persamaan Linear Satu Variabel (SPLSV)

35]
3(5x + 7) = 9x – 15
 15x + 21 = 9x – 15
 15x – 9x  = -15 – 21
          6x  = -36
            x  = -36/6
            x = -6

x = a = -6
Maka,
2a – 7 = 2(-6) – 7
          = -12 – 7
          = -19

36]
1/2(8x – 4) = 2/3(3x + 6) 
      4x – 2  = 2x + 4
     4x – 2x = 4 + 2
            2x = 6
              x = 6/2
              x = 3