[tex]1)4 - \frac{2}{5} x = 20 \\2) 4 - \frac{2}{5} x = - 20[/tex]
Matematika
rhomadonmuhammad
Pertanyaan
[tex]1)4 - \frac{2}{5} x = 20 \\2) 4 - \frac{2}{5} x = - 20[/tex]
1 Jawaban
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1. Jawaban ahreumlim
Materi : Sistem Persamaan Linear 1 variabel
1)
4 - 2x/5 = 20
20 - 2x = 100
-2x = 80
2x = -80
x = -80/2
x = -40
2)
4 - 2x/5 = -20
20 - 2x = -100
-2x = -120
2x = 120
x = 120/2
x = 60