1. 3(d – 3) = 5 (2d + 1)
2. 3n – 2 = 6 -(8 + 3x)
3. 5(6 – r) + 1 = p + 1
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Tentukan penyelesaian persamaan berikut!
Jawaban Terkonfirmasi
1. 3(d – 3) = 5 (2d + 1)
3d -9 = 10d +5
3d-10d = 5+9
-7d = 14
d = -14/7
d= -2
2. 3n – 2 = 6 -(8 + 3x)
3n-2 = 6-8-3x
3n-2 =-2 -3x
3n+3x = 0
3. 5(6 – r) + 1 = p + 1
30 -5r +1 = p+1
-5r-p = -30
1.3(d-3)= 5(2d+1)
3d-9 =10d+5
3d-10d = 5+9
-7d = 14
d= 14/-7
d= -2