Jika ¼ (×+3)=2/5 dari ×+3 adalah tling bantuannya pakai cara..besok dikumpulkan
1/4 (x + 3) = 2/5 (x + 3)
1/4x + 3/4 = 2/5x + 6/5
1/4x – 2/5x = 6/5 – 3/4
5/20x – 8/20x = 24/20 – 15/20
– 3/20x = 9/20
x = 9/20 per -3/20
x = 9/20 dikali – 20/3
x = – 180/60
x = -3
Jadi, nilai x = -3.