Operasi Bentuk Aljabar Pengurangan

ax - bx = (a-b)x
ax - b - cx - d = (a - c)x - (b+d)
contoh :
1. 7x – 3x = ?
2. 5x – 8 – 2x – 1 = ?
jawab :
1. 7x – 3x = (7-3)x = 4x
2. 5x – 8 – 2x – 1 = (5-2)x – (8+1) = 3x - 9